北航数值分析大作业第二题.docx
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北航数值分析大作业第二题
数值分析第二次大作业
史立峰
SY1505327
一、方案
(1)利用循环结构将(i,j=1,2,……,10)进行赋值,得到需要变换的矩阵A;
(2)然后,对矩阵A利用Householder矩阵进行相似变换,把A化为上三角矩阵A(n-1)。
对A拟上三角化,得到拟上三角矩阵A(n-1),具体算法如下:
记A
(1)=A,并记A(r)的第r列至第n列的元素为。
对于执行
1.若全为零,则令A(r+1)=A(r),转5;否则转2。
2.计算
3.令。
4.计算
5.继续。
(3)使用带双步位移的QR方法计算矩阵A(n-1)的全部特征值,也是A的全部特征值,具体算法如下:
1.给定精度水平和迭代最大次数。
2.记,令。
3.如果,则得到的一个特征值,置(降阶),转4;否则转5。
4.如果,则得到的一个特征值,转11;如果,则转3。
5.求2阶子阵
的两个特征值和,即计算二次方程
的两个根和。
6.如果,则得到的两个特征值和,转11;否则转7。
7.如果,则得到的两个特征值和,置(降阶),转4;否则转8
8.如果,则计算终止,未得到的全部特征值;否则转9。
9.记,计算
10.置,转3。
11.的全部特征值已计算完毕,停止计算。
其中,的分解与的计算用下列算法实现:
记。
1.若全为零,则令,转5;否则转2。
此算法执行完后,就得到。
(4)计算Q,R,一边求R*Q矩阵。
记
1.若全为零,则令转5;否则转2.
5.继续
当此算法执行完毕后,就得到正交矩阵和上三角矩阵
6.然后计算出矩阵
(5)用列主元素Gauss消去法计算矩阵对应于实特征值的特征向量,具体算法如下:
1.消元过程
(1)选行号,使。
(2)交换与所含的数值。
(3)对于计算
2.回代过程
最终得到的向量的即为对应于实特征值的特征向量。
二、源程序
#include
#definen10
#defineE1.0e-12
voidHouseholder(doublea[n][n]);//拟上三角化函数
doublesgn(doublea);//符号函数
voidQRfenjie(doublea[n][n],doubleQ[n][n],doubleR[n][n]);
voidQR(doublea[n][n],doubleL[n][2]);//带双步位移的QR分解
voidMxM(doubleM[n][n],doubleA[n][n],doubleB[n][n],intm);//矩阵相乘
voidsolve(doublea[n][n],doubles1[2],doubles2[2],intm);//解方程函数
voidGauss(doublea[n][n],doublex[n]);//定义列主元高斯消去法函数
voidmain()
{
inti,j,k;
doublea[n][n],qr[n][n],q[n][n],r[n][n],L[n][2],x[n];
for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1));elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}//cout<Householder(a);//调用拟上三角化函数cout<"<for(i=0;i{//k=0;//为了显示方便,每行显示三个元素,使用k来实现//cout<<"矩阵A的第"<"<for(j=0;j<7;j++){if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<//k++;//cout<//if(k%3==0)//判断每行是否到达三个元素}cout<}cout<<"对矩阵A拟上三角化后三列的结果:"<for(i=0;i{//k=0;//为了显示方便,每行显示三个元素,使用k来实现//cout<<"矩阵A的第"<"<for(j=7;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//判断每行是否到达三个元素//cout<}cout<}cout<QRfenjie(a,q,r);QR(a,L);cout<"<for(i=0;i{for(j=0;j<7;j++){if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<<"对矩阵A进行QR分解后所得矩阵三列的结果:"<for(i=0;i{for(j=7;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}/*cout<<"对矩阵A进行QR分解后所得矩阵:"<for(i=0;i{k=0;cout<<"矩阵A的第"<"<for(j=0;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<k++;if(k%3==0)cout<}cout<}*/for(i=0;i{for(j=0;jfor(k=0,qr[i][j]=0;kqr[i][j]=qr[i][j]+r[i][k]*q[k][j];}cout<"<for(i=0;i{//k=0;//cout<<"R*Q的第"<"<for(j=0;j<7;j++){if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1));elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}//cout<Householder(a);//调用拟上三角化函数cout<"<for(i=0;i{//k=0;//为了显示方便,每行显示三个元素,使用k来实现//cout<<"矩阵A的第"<"<for(j=0;j<7;j++){if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<//k++;//cout<//if(k%3==0)//判断每行是否到达三个元素}cout<}cout<<"对矩阵A拟上三角化后三列的结果:"<for(i=0;i{//k=0;//为了显示方便,每行显示三个元素,使用k来实现//cout<<"矩阵A的第"<"<for(j=7;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//判断每行是否到达三个元素//cout<}cout<}cout<QRfenjie(a,q,r);QR(a,L);cout<"<for(i=0;i{for(j=0;j<7;j++){if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<<"对矩阵A进行QR分解后所得矩阵三列的结果:"<for(i=0;i{for(j=7;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}/*cout<<"对矩阵A进行QR分解后所得矩阵:"<for(i=0;i{k=0;cout<<"矩阵A的第"<"<for(j=0;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<k++;if(k%3==0)cout<}cout<}*/for(i=0;i{for(j=0;jfor(k=0,qr[i][j]=0;kqr[i][j]=qr[i][j]+r[i][k]*q[k][j];}cout<"<for(i=0;i{//k=0;//cout<<"R*Q的第"<"<for(j=0;j<7;j++){if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
if(i==j)
a[i][j]=1.5*cos(i+1+1.2*(j+1));
else
a[i][j]=sin(0.5*(i+1)+0.2*(j+1));
}
//cout<Householder(a);//调用拟上三角化函数cout<"<for(i=0;i{//k=0;//为了显示方便,每行显示三个元素,使用k来实现//cout<<"矩阵A的第"<"<for(j=0;j<7;j++){if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<//k++;//cout<//if(k%3==0)//判断每行是否到达三个元素}cout<}cout<<"对矩阵A拟上三角化后三列的结果:"<for(i=0;i{//k=0;//为了显示方便,每行显示三个元素,使用k来实现//cout<<"矩阵A的第"<"<for(j=7;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//判断每行是否到达三个元素//cout<}cout<}cout<QRfenjie(a,q,r);QR(a,L);cout<"<for(i=0;i{for(j=0;j<7;j++){if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<<"对矩阵A进行QR分解后所得矩阵三列的结果:"<for(i=0;i{for(j=7;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}/*cout<<"对矩阵A进行QR分解后所得矩阵:"<for(i=0;i{k=0;cout<<"矩阵A的第"<"<for(j=0;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<k++;if(k%3==0)cout<}cout<}*/for(i=0;i{for(j=0;jfor(k=0,qr[i][j]=0;kqr[i][j]=qr[i][j]+r[i][k]*q[k][j];}cout<"<for(i=0;i{//k=0;//cout<<"R*Q的第"<"<for(j=0;j<7;j++){if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
Householder(a);//调用拟上三角化函数
cout<"<for(i=0;i{//k=0;//为了显示方便,每行显示三个元素,使用k来实现//cout<<"矩阵A的第"<"<for(j=0;j<7;j++){if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<//k++;//cout<//if(k%3==0)//判断每行是否到达三个元素}cout<}cout<<"对矩阵A拟上三角化后三列的结果:"<for(i=0;i{//k=0;//为了显示方便,每行显示三个元素,使用k来实现//cout<<"矩阵A的第"<"<for(j=7;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//判断每行是否到达三个元素//cout<}cout<}cout<QRfenjie(a,q,r);QR(a,L);cout<"<for(i=0;i{for(j=0;j<7;j++){if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<<"对矩阵A进行QR分解后所得矩阵三列的结果:"<for(i=0;i{for(j=7;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}/*cout<<"对矩阵A进行QR分解后所得矩阵:"<for(i=0;i{k=0;cout<<"矩阵A的第"<"<for(j=0;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<k++;if(k%3==0)cout<}cout<}*/for(i=0;i{for(j=0;jfor(k=0,qr[i][j]=0;kqr[i][j]=qr[i][j]+r[i][k]*q[k][j];}cout<"<for(i=0;i{//k=0;//cout<<"R*Q的第"<"<for(j=0;j<7;j++){if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
"<for(i=0;i{//k=0;//为了显示方便,每行显示三个元素,使用k来实现//cout<<"矩阵A的第"<"<for(j=0;j<7;j++){if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<//k++;//cout<//if(k%3==0)//判断每行是否到达三个元素}cout<}cout<<"对矩阵A拟上三角化后三列的结果:"<for(i=0;i{//k=0;//为了显示方便,每行显示三个元素,使用k来实现//cout<<"矩阵A的第"<"<for(j=7;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//判断每行是否到达三个元素//cout<}cout<}cout<QRfenjie(a,q,r);QR(a,L);cout<"<for(i=0;i{for(j=0;j<7;j++){if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<<"对矩阵A进行QR分解后所得矩阵三列的结果:"<for(i=0;i{for(j=7;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}/*cout<<"对矩阵A进行QR分解后所得矩阵:"<for(i=0;i{k=0;cout<<"矩阵A的第"<"<for(j=0;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<k++;if(k%3==0)cout<}cout<}*/for(i=0;i{for(j=0;jfor(k=0,qr[i][j]=0;kqr[i][j]=qr[i][j]+r[i][k]*q[k][j];}cout<"<for(i=0;i{//k=0;//cout<<"R*Q的第"<"<for(j=0;j<7;j++){if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
for(i=0;i{//k=0;//为了显示方便,每行显示三个元素,使用k来实现//cout<<"矩阵A的第"<"<for(j=0;j<7;j++){if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<//k++;//cout<//if(k%3==0)//判断每行是否到达三个元素}cout<}cout<<"对矩阵A拟上三角化后三列的结果:"<for(i=0;i{//k=0;//为了显示方便,每行显示三个元素,使用k来实现//cout<<"矩阵A的第"<"<for(j=7;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//判断每行是否到达三个元素//cout<}cout<}cout<QRfenjie(a,q,r);QR(a,L);cout<"<for(i=0;i{for(j=0;j<7;j++){if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<<"对矩阵A进行QR分解后所得矩阵三列的结果:"<for(i=0;i{for(j=7;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}/*cout<<"对矩阵A进行QR分解后所得矩阵:"<for(i=0;i{k=0;cout<<"矩阵A的第"<"<for(j=0;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<k++;if(k%3==0)cout<}cout<}*/for(i=0;i{for(j=0;jfor(k=0,qr[i][j]=0;kqr[i][j]=qr[i][j]+r[i][k]*q[k][j];}cout<"<for(i=0;i{//k=0;//cout<<"R*Q的第"<"<for(j=0;j<7;j++){if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
//k=0;//为了显示方便,每行显示三个元素,使用k来实现
//cout<<"矩阵A的第"<
"<for(j=0;j<7;j++){if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<//k++;//cout<//if(k%3==0)//判断每行是否到达三个元素}cout<}cout<<"对矩阵A拟上三角化后三列的结果:"<for(i=0;i{//k=0;//为了显示方便,每行显示三个元素,使用k来实现//cout<<"矩阵A的第"<"<for(j=7;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//判断每行是否到达三个元素//cout<}cout<}cout<QRfenjie(a,q,r);QR(a,L);cout<"<for(i=0;i{for(j=0;j<7;j++){if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<<"对矩阵A进行QR分解后所得矩阵三列的结果:"<for(i=0;i{for(j=7;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}/*cout<<"对矩阵A进行QR分解后所得矩阵:"<for(i=0;i{k=0;cout<<"矩阵A的第"<"<for(j=0;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<k++;if(k%3==0)cout<}cout<}*/for(i=0;i{for(j=0;jfor(k=0,qr[i][j]=0;kqr[i][j]=qr[i][j]+r[i][k]*q[k][j];}cout<"<for(i=0;i{//k=0;//cout<<"R*Q的第"<"<for(j=0;j<7;j++){if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
for(j=0;j<7;j++)
if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<//k++;//cout<//if(k%3==0)//判断每行是否到达三个元素}cout<}cout<<"对矩阵A拟上三角化后三列的结果:"<for(i=0;i{//k=0;//为了显示方便,每行显示三个元素,使用k来实现//cout<<"矩阵A的第"<"<for(j=7;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//判断每行是否到达三个元素//cout<}cout<}cout<QRfenjie(a,q,r);QR(a,L);cout<"<for(i=0;i{for(j=0;j<7;j++){if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<<"对矩阵A进行QR分解后所得矩阵三列的结果:"<for(i=0;i{for(j=7;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}/*cout<<"对矩阵A进行QR分解后所得矩阵:"<for(i=0;i{k=0;cout<<"矩阵A的第"<"<for(j=0;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<k++;if(k%3==0)cout<}cout<}*/for(i=0;i{for(j=0;jfor(k=0,qr[i][j]=0;kqr[i][j]=qr[i][j]+r[i][k]*q[k][j];}cout<"<for(i=0;i{//k=0;//cout<<"R*Q的第"<"<for(j=0;j<7;j++){if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
a[i][j]=0;
cout<:scientific)<//k++;//cout<//if(k%3==0)//判断每行是否到达三个元素}cout<}cout<<"对矩阵A拟上三角化后三列的结果:"<for(i=0;i{//k=0;//为了显示方便,每行显示三个元素,使用k来实现//cout<<"矩阵A的第"<"<for(j=7;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//判断每行是否到达三个元素//cout<}cout<}cout<QRfenjie(a,q,r);QR(a,L);cout<"<for(i=0;i{for(j=0;j<7;j++){if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<<"对矩阵A进行QR分解后所得矩阵三列的结果:"<for(i=0;i{for(j=7;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}/*cout<<"对矩阵A进行QR分解后所得矩阵:"<for(i=0;i{k=0;cout<<"矩阵A的第"<"<for(j=0;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<k++;if(k%3==0)cout<}cout<}*/for(i=0;i{for(j=0;jfor(k=0,qr[i][j]=0;kqr[i][j]=qr[i][j]+r[i][k]*q[k][j];}cout<"<for(i=0;i{//k=0;//cout<<"R*Q的第"<"<for(j=0;j<7;j++){if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
:
scientific)<//k++;//cout<//if(k%3==0)//判断每行是否到达三个元素}cout<}cout<<"对矩阵A拟上三角化后三列的结果:"<for(i=0;i{//k=0;//为了显示方便,每行显示三个元素,使用k来实现//cout<<"矩阵A的第"<"<for(j=7;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//判断每行是否到达三个元素//cout<}cout<}cout<QRfenjie(a,q,r);QR(a,L);cout<"<for(i=0;i{for(j=0;j<7;j++){if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<<"对矩阵A进行QR分解后所得矩阵三列的结果:"<for(i=0;i{for(j=7;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}/*cout<<"对矩阵A进行QR分解后所得矩阵:"<for(i=0;i{k=0;cout<<"矩阵A的第"<"<for(j=0;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<k++;if(k%3==0)cout<}cout<}*/for(i=0;i{for(j=0;jfor(k=0,qr[i][j]=0;kqr[i][j]=qr[i][j]+r[i][k]*q[k][j];}cout<"<for(i=0;i{//k=0;//cout<<"R*Q的第"<"<for(j=0;j<7;j++){if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
//k++;
//cout<//if(k%3==0)//判断每行是否到达三个元素}cout<}cout<<"对矩阵A拟上三角化后三列的结果:"<for(i=0;i{//k=0;//为了显示方便,每行显示三个元素,使用k来实现//cout<<"矩阵A的第"<"<for(j=7;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//判断每行是否到达三个元素//cout<}cout<}cout<QRfenjie(a,q,r);QR(a,L);cout<"<for(i=0;i{for(j=0;j<7;j++){if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<<"对矩阵A进行QR分解后所得矩阵三列的结果:"<for(i=0;i{for(j=7;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}/*cout<<"对矩阵A进行QR分解后所得矩阵:"<for(i=0;i{k=0;cout<<"矩阵A的第"<"<for(j=0;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<k++;if(k%3==0)cout<}cout<}*/for(i=0;i{for(j=0;jfor(k=0,qr[i][j]=0;kqr[i][j]=qr[i][j]+r[i][k]*q[k][j];}cout<"<for(i=0;i{//k=0;//cout<<"R*Q的第"<"<for(j=0;j<7;j++){if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
//if(k%3==0)//判断每行是否到达三个元素
cout<}cout<<"对矩阵A拟上三角化后三列的结果:"<for(i=0;i{//k=0;//为了显示方便,每行显示三个元素,使用k来实现//cout<<"矩阵A的第"<"<for(j=7;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//判断每行是否到达三个元素//cout<}cout<}cout<QRfenjie(a,q,r);QR(a,L);cout<"<for(i=0;i{for(j=0;j<7;j++){if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<<"对矩阵A进行QR分解后所得矩阵三列的结果:"<for(i=0;i{for(j=7;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}/*cout<<"对矩阵A进行QR分解后所得矩阵:"<for(i=0;i{k=0;cout<<"矩阵A的第"<"<for(j=0;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<k++;if(k%3==0)cout<}cout<}*/for(i=0;i{for(j=0;jfor(k=0,qr[i][j]=0;kqr[i][j]=qr[i][j]+r[i][k]*q[k][j];}cout<"<for(i=0;i{//k=0;//cout<<"R*Q的第"<"<for(j=0;j<7;j++){if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
cout<<"对矩阵A拟上三角化后三列的结果:
"<for(i=0;i{//k=0;//为了显示方便,每行显示三个元素,使用k来实现//cout<<"矩阵A的第"<"<for(j=7;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//判断每行是否到达三个元素//cout<}cout<}cout<QRfenjie(a,q,r);QR(a,L);cout<"<for(i=0;i{for(j=0;j<7;j++){if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<<"对矩阵A进行QR分解后所得矩阵三列的结果:"<for(i=0;i{for(j=7;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}/*cout<<"对矩阵A进行QR分解后所得矩阵:"<for(i=0;i{k=0;cout<<"矩阵A的第"<"<for(j=0;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<k++;if(k%3==0)cout<}cout<}*/for(i=0;i{for(j=0;jfor(k=0,qr[i][j]=0;kqr[i][j]=qr[i][j]+r[i][k]*q[k][j];}cout<"<for(i=0;i{//k=0;//cout<<"R*Q的第"<"<for(j=0;j<7;j++){if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
for(i=0;i{//k=0;//为了显示方便,每行显示三个元素,使用k来实现//cout<<"矩阵A的第"<"<for(j=7;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//判断每行是否到达三个元素//cout<}cout<}cout<QRfenjie(a,q,r);QR(a,L);cout<"<for(i=0;i{for(j=0;j<7;j++){if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<<"对矩阵A进行QR分解后所得矩阵三列的结果:"<for(i=0;i{for(j=7;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}/*cout<<"对矩阵A进行QR分解后所得矩阵:"<for(i=0;i{k=0;cout<<"矩阵A的第"<"<for(j=0;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<k++;if(k%3==0)cout<}cout<}*/for(i=0;i{for(j=0;jfor(k=0,qr[i][j]=0;kqr[i][j]=qr[i][j]+r[i][k]*q[k][j];}cout<"<for(i=0;i{//k=0;//cout<<"R*Q的第"<"<for(j=0;j<7;j++){if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
"<for(j=7;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//判断每行是否到达三个元素//cout<}cout<}cout<QRfenjie(a,q,r);QR(a,L);cout<"<for(i=0;i{for(j=0;j<7;j++){if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<<"对矩阵A进行QR分解后所得矩阵三列的结果:"<for(i=0;i{for(j=7;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}/*cout<<"对矩阵A进行QR分解后所得矩阵:"<for(i=0;i{k=0;cout<<"矩阵A的第"<"<for(j=0;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<k++;if(k%3==0)cout<}cout<}*/for(i=0;i{for(j=0;jfor(k=0,qr[i][j]=0;kqr[i][j]=qr[i][j]+r[i][k]*q[k][j];}cout<"<for(i=0;i{//k=0;//cout<<"R*Q的第"<"<for(j=0;j<7;j++){if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
for(j=7;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//判断每行是否到达三个元素//cout<}cout<}cout<QRfenjie(a,q,r);QR(a,L);cout<"<for(i=0;i{for(j=0;j<7;j++){if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<<"对矩阵A进行QR分解后所得矩阵三列的结果:"<for(i=0;i{for(j=7;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}/*cout<<"对矩阵A进行QR分解后所得矩阵:"<for(i=0;i{k=0;cout<<"矩阵A的第"<"<for(j=0;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<k++;if(k%3==0)cout<}cout<}*/for(i=0;i{for(j=0;jfor(k=0,qr[i][j]=0;kqr[i][j]=qr[i][j]+r[i][k]*q[k][j];}cout<"<for(i=0;i{//k=0;//cout<<"R*Q的第"<"<for(j=0;j<7;j++){if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//判断每行是否到达三个元素//cout<}cout<}cout<QRfenjie(a,q,r);QR(a,L);cout<"<for(i=0;i{for(j=0;j<7;j++){if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<<"对矩阵A进行QR分解后所得矩阵三列的结果:"<for(i=0;i{for(j=7;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}/*cout<<"对矩阵A进行QR分解后所得矩阵:"<for(i=0;i{k=0;cout<<"矩阵A的第"<"<for(j=0;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<k++;if(k%3==0)cout<}cout<}*/for(i=0;i{for(j=0;jfor(k=0,qr[i][j]=0;kqr[i][j]=qr[i][j]+r[i][k]*q[k][j];}cout<"<for(i=0;i{//k=0;//cout<<"R*Q的第"<"<for(j=0;j<7;j++){if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
cout<:scientific)<//k++;//if(k%3==0)//判断每行是否到达三个元素//cout<}cout<}cout<QRfenjie(a,q,r);QR(a,L);cout<"<for(i=0;i{for(j=0;j<7;j++){if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<<"对矩阵A进行QR分解后所得矩阵三列的结果:"<for(i=0;i{for(j=7;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}/*cout<<"对矩阵A进行QR分解后所得矩阵:"<for(i=0;i{k=0;cout<<"矩阵A的第"<"<for(j=0;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<k++;if(k%3==0)cout<}cout<}*/for(i=0;i{for(j=0;jfor(k=0,qr[i][j]=0;kqr[i][j]=qr[i][j]+r[i][k]*q[k][j];}cout<"<for(i=0;i{//k=0;//cout<<"R*Q的第"<"<for(j=0;j<7;j++){if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
scientific)<//k++;//if(k%3==0)//判断每行是否到达三个元素//cout<}cout<}cout<QRfenjie(a,q,r);QR(a,L);cout<"<for(i=0;i{for(j=0;j<7;j++){if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<<"对矩阵A进行QR分解后所得矩阵三列的结果:"<for(i=0;i{for(j=7;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}/*cout<<"对矩阵A进行QR分解后所得矩阵:"<for(i=0;i{k=0;cout<<"矩阵A的第"<"<for(j=0;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<k++;if(k%3==0)cout<}cout<}*/for(i=0;i{for(j=0;jfor(k=0,qr[i][j]=0;kqr[i][j]=qr[i][j]+r[i][k]*q[k][j];}cout<"<for(i=0;i{//k=0;//cout<<"R*Q的第"<"<for(j=0;j<7;j++){if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
//cout<}cout<}cout<QRfenjie(a,q,r);QR(a,L);cout<"<for(i=0;i{for(j=0;j<7;j++){if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<<"对矩阵A进行QR分解后所得矩阵三列的结果:"<for(i=0;i{for(j=7;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}/*cout<<"对矩阵A进行QR分解后所得矩阵:"<for(i=0;i{k=0;cout<<"矩阵A的第"<"<for(j=0;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<k++;if(k%3==0)cout<}cout<}*/for(i=0;i{for(j=0;jfor(k=0,qr[i][j]=0;kqr[i][j]=qr[i][j]+r[i][k]*q[k][j];}cout<"<for(i=0;i{//k=0;//cout<<"R*Q的第"<"<for(j=0;j<7;j++){if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
cout<}cout<QRfenjie(a,q,r);QR(a,L);cout<"<for(i=0;i{for(j=0;j<7;j++){if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<<"对矩阵A进行QR分解后所得矩阵三列的结果:"<for(i=0;i{for(j=7;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}/*cout<<"对矩阵A进行QR分解后所得矩阵:"<for(i=0;i{k=0;cout<<"矩阵A的第"<"<for(j=0;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<k++;if(k%3==0)cout<}cout<}*/for(i=0;i{for(j=0;jfor(k=0,qr[i][j]=0;kqr[i][j]=qr[i][j]+r[i][k]*q[k][j];}cout<"<for(i=0;i{//k=0;//cout<<"R*Q的第"<"<for(j=0;j<7;j++){if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
cout<QRfenjie(a,q,r);QR(a,L);cout<"<for(i=0;i{for(j=0;j<7;j++){if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<<"对矩阵A进行QR分解后所得矩阵三列的结果:"<for(i=0;i{for(j=7;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}/*cout<<"对矩阵A进行QR分解后所得矩阵:"<for(i=0;i{k=0;cout<<"矩阵A的第"<"<for(j=0;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<k++;if(k%3==0)cout<}cout<}*/for(i=0;i{for(j=0;jfor(k=0,qr[i][j]=0;kqr[i][j]=qr[i][j]+r[i][k]*q[k][j];}cout<"<for(i=0;i{//k=0;//cout<<"R*Q的第"<"<for(j=0;j<7;j++){if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
QRfenjie(a,q,r);
QR(a,L);
cout<"<for(i=0;i{for(j=0;j<7;j++){if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<<"对矩阵A进行QR分解后所得矩阵三列的结果:"<for(i=0;i{for(j=7;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}/*cout<<"对矩阵A进行QR分解后所得矩阵:"<for(i=0;i{k=0;cout<<"矩阵A的第"<"<for(j=0;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<k++;if(k%3==0)cout<}cout<}*/for(i=0;i{for(j=0;jfor(k=0,qr[i][j]=0;kqr[i][j]=qr[i][j]+r[i][k]*q[k][j];}cout<"<for(i=0;i{//k=0;//cout<<"R*Q的第"<"<for(j=0;j<7;j++){if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
"<for(i=0;i{for(j=0;j<7;j++){if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<<"对矩阵A进行QR分解后所得矩阵三列的结果:"<for(i=0;i{for(j=7;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}/*cout<<"对矩阵A进行QR分解后所得矩阵:"<for(i=0;i{k=0;cout<<"矩阵A的第"<"<for(j=0;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<k++;if(k%3==0)cout<}cout<}*/for(i=0;i{for(j=0;jfor(k=0,qr[i][j]=0;kqr[i][j]=qr[i][j]+r[i][k]*q[k][j];}cout<"<for(i=0;i{//k=0;//cout<<"R*Q的第"<"<for(j=0;j<7;j++){if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
for(i=0;i{for(j=0;j<7;j++){if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<<"对矩阵A进行QR分解后所得矩阵三列的结果:"<for(i=0;i{for(j=7;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}/*cout<<"对矩阵A进行QR分解后所得矩阵:"<for(i=0;i{k=0;cout<<"矩阵A的第"<"<for(j=0;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<k++;if(k%3==0)cout<}cout<}*/for(i=0;i{for(j=0;jfor(k=0,qr[i][j]=0;kqr[i][j]=qr[i][j]+r[i][k]*q[k][j];}cout<"<for(i=0;i{//k=0;//cout<<"R*Q的第"<"<for(j=0;j<7;j++){if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<<"对矩阵A进行QR分解后所得矩阵三列的结果:"<for(i=0;i{for(j=7;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}/*cout<<"对矩阵A进行QR分解后所得矩阵:"<for(i=0;i{k=0;cout<<"矩阵A的第"<"<for(j=0;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<k++;if(k%3==0)cout<}cout<}*/for(i=0;i{for(j=0;jfor(k=0,qr[i][j]=0;kqr[i][j]=qr[i][j]+r[i][k]*q[k][j];}cout<"<for(i=0;i{//k=0;//cout<<"R*Q的第"<"<for(j=0;j<7;j++){if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
cout<:scientific)<}cout<}cout<<"对矩阵A进行QR分解后所得矩阵三列的结果:"<for(i=0;i{for(j=7;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}/*cout<<"对矩阵A进行QR分解后所得矩阵:"<for(i=0;i{k=0;cout<<"矩阵A的第"<"<for(j=0;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<k++;if(k%3==0)cout<}cout<}*/for(i=0;i{for(j=0;jfor(k=0,qr[i][j]=0;kqr[i][j]=qr[i][j]+r[i][k]*q[k][j];}cout<"<for(i=0;i{//k=0;//cout<<"R*Q的第"<"<for(j=0;j<7;j++){if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
scientific)<}cout<}cout<<"对矩阵A进行QR分解后所得矩阵三列的结果:"<for(i=0;i{for(j=7;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}/*cout<<"对矩阵A进行QR分解后所得矩阵:"<for(i=0;i{k=0;cout<<"矩阵A的第"<"<for(j=0;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<k++;if(k%3==0)cout<}cout<}*/for(i=0;i{for(j=0;jfor(k=0,qr[i][j]=0;kqr[i][j]=qr[i][j]+r[i][k]*q[k][j];}cout<"<for(i=0;i{//k=0;//cout<<"R*Q的第"<"<for(j=0;j<7;j++){if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
cout<}cout<<"对矩阵A进行QR分解后所得矩阵三列的结果:"<for(i=0;i{for(j=7;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}/*cout<<"对矩阵A进行QR分解后所得矩阵:"<for(i=0;i{k=0;cout<<"矩阵A的第"<"<for(j=0;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<k++;if(k%3==0)cout<}cout<}*/for(i=0;i{for(j=0;jfor(k=0,qr[i][j]=0;kqr[i][j]=qr[i][j]+r[i][k]*q[k][j];}cout<"<for(i=0;i{//k=0;//cout<<"R*Q的第"<"<for(j=0;j<7;j++){if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
cout<<"对矩阵A进行QR分解后所得矩阵三列的结果:
"<for(i=0;i{for(j=7;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}/*cout<<"对矩阵A进行QR分解后所得矩阵:"<for(i=0;i{k=0;cout<<"矩阵A的第"<"<for(j=0;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<k++;if(k%3==0)cout<}cout<}*/for(i=0;i{for(j=0;jfor(k=0,qr[i][j]=0;kqr[i][j]=qr[i][j]+r[i][k]*q[k][j];}cout<"<for(i=0;i{//k=0;//cout<<"R*Q的第"<"<for(j=0;j<7;j++){if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
for(i=0;i{for(j=7;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}/*cout<<"对矩阵A进行QR分解后所得矩阵:"<for(i=0;i{k=0;cout<<"矩阵A的第"<"<for(j=0;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<k++;if(k%3==0)cout<}cout<}*/for(i=0;i{for(j=0;jfor(k=0,qr[i][j]=0;kqr[i][j]=qr[i][j]+r[i][k]*q[k][j];}cout<"<for(i=0;i{//k=0;//cout<<"R*Q的第"<"<for(j=0;j<7;j++){if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
for(j=7;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}/*cout<<"对矩阵A进行QR分解后所得矩阵:"<for(i=0;i{k=0;cout<<"矩阵A的第"<"<for(j=0;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<k++;if(k%3==0)cout<}cout<}*/for(i=0;i{for(j=0;jfor(k=0,qr[i][j]=0;kqr[i][j]=qr[i][j]+r[i][k]*q[k][j];}cout<"<for(i=0;i{//k=0;//cout<<"R*Q的第"<"<for(j=0;j<7;j++){if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<}cout<}/*cout<<"对矩阵A进行QR分解后所得矩阵:"<for(i=0;i{k=0;cout<<"矩阵A的第"<"<for(j=0;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<k++;if(k%3==0)cout<}cout<}*/for(i=0;i{for(j=0;jfor(k=0,qr[i][j]=0;kqr[i][j]=qr[i][j]+r[i][k]*q[k][j];}cout<"<for(i=0;i{//k=0;//cout<<"R*Q的第"<"<for(j=0;j<7;j++){if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
cout<:scientific)<}cout<}/*cout<<"对矩阵A进行QR分解后所得矩阵:"<for(i=0;i{k=0;cout<<"矩阵A的第"<"<for(j=0;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<k++;if(k%3==0)cout<}cout<}*/for(i=0;i{for(j=0;jfor(k=0,qr[i][j]=0;kqr[i][j]=qr[i][j]+r[i][k]*q[k][j];}cout<"<for(i=0;i{//k=0;//cout<<"R*Q的第"<"<for(j=0;j<7;j++){if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
scientific)<}cout<}/*cout<<"对矩阵A进行QR分解后所得矩阵:"<for(i=0;i{k=0;cout<<"矩阵A的第"<"<for(j=0;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<k++;if(k%3==0)cout<}cout<}*/for(i=0;i{for(j=0;jfor(k=0,qr[i][j]=0;kqr[i][j]=qr[i][j]+r[i][k]*q[k][j];}cout<"<for(i=0;i{//k=0;//cout<<"R*Q的第"<"<for(j=0;j<7;j++){if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
cout<}/*cout<<"对矩阵A进行QR分解后所得矩阵:"<for(i=0;i{k=0;cout<<"矩阵A的第"<"<for(j=0;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<k++;if(k%3==0)cout<}cout<}*/for(i=0;i{for(j=0;jfor(k=0,qr[i][j]=0;kqr[i][j]=qr[i][j]+r[i][k]*q[k][j];}cout<"<for(i=0;i{//k=0;//cout<<"R*Q的第"<"<for(j=0;j<7;j++){if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
/*cout<<"对矩阵A进行QR分解后所得矩阵:
"<for(i=0;i{k=0;cout<<"矩阵A的第"<"<for(j=0;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<k++;if(k%3==0)cout<}cout<}*/for(i=0;i{for(j=0;jfor(k=0,qr[i][j]=0;kqr[i][j]=qr[i][j]+r[i][k]*q[k][j];}cout<"<for(i=0;i{//k=0;//cout<<"R*Q的第"<"<for(j=0;j<7;j++){if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
for(i=0;i{k=0;cout<<"矩阵A的第"<"<for(j=0;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<k++;if(k%3==0)cout<}cout<}*/for(i=0;i{for(j=0;jfor(k=0,qr[i][j]=0;kqr[i][j]=qr[i][j]+r[i][k]*q[k][j];}cout<"<for(i=0;i{//k=0;//cout<<"R*Q的第"<"<for(j=0;j<7;j++){if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
k=0;
cout<<"矩阵A的第"<
"<for(j=0;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<k++;if(k%3==0)cout<}cout<}*/for(i=0;i{for(j=0;jfor(k=0,qr[i][j]=0;kqr[i][j]=qr[i][j]+r[i][k]*q[k][j];}cout<"<for(i=0;i{//k=0;//cout<<"R*Q的第"<"<for(j=0;j<7;j++){if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
for(j=0;j{if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<k++;if(k%3==0)cout<}cout<}*/for(i=0;i{for(j=0;jfor(k=0,qr[i][j]=0;kqr[i][j]=qr[i][j]+r[i][k]*q[k][j];}cout<"<for(i=0;i{//k=0;//cout<<"R*Q的第"<"<for(j=0;j<7;j++){if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
if(fabs(a[i][j])a[i][j]=0;cout<:scientific)<k++;if(k%3==0)cout<}cout<}*/for(i=0;i{for(j=0;jfor(k=0,qr[i][j]=0;kqr[i][j]=qr[i][j]+r[i][k]*q[k][j];}cout<"<for(i=0;i{//k=0;//cout<<"R*Q的第"<"<for(j=0;j<7;j++){if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
cout<:scientific)<k++;if(k%3==0)cout<}cout<}*/for(i=0;i{for(j=0;jfor(k=0,qr[i][j]=0;kqr[i][j]=qr[i][j]+r[i][k]*q[k][j];}cout<"<for(i=0;i{//k=0;//cout<<"R*Q的第"<"<for(j=0;j<7;j++){if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
scientific)<k++;if(k%3==0)cout<}cout<}*/for(i=0;i{for(j=0;jfor(k=0,qr[i][j]=0;kqr[i][j]=qr[i][j]+r[i][k]*q[k][j];}cout<"<for(i=0;i{//k=0;//cout<<"R*Q的第"<"<for(j=0;j<7;j++){if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
k++;
if(k%3==0)
cout<}cout<}*/for(i=0;i{for(j=0;jfor(k=0,qr[i][j]=0;kqr[i][j]=qr[i][j]+r[i][k]*q[k][j];}cout<"<for(i=0;i{//k=0;//cout<<"R*Q的第"<"<for(j=0;j<7;j++){if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
cout<}*/for(i=0;i{for(j=0;jfor(k=0,qr[i][j]=0;kqr[i][j]=qr[i][j]+r[i][k]*q[k][j];}cout<"<for(i=0;i{//k=0;//cout<<"R*Q的第"<"<for(j=0;j<7;j++){if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
}*/
for(i=0;i{for(j=0;jfor(k=0,qr[i][j]=0;kqr[i][j]=qr[i][j]+r[i][k]*q[k][j];}cout<"<for(i=0;i{//k=0;//cout<<"R*Q的第"<"<for(j=0;j<7;j++){if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
for(j=0;jfor(k=0,qr[i][j]=0;kqr[i][j]=qr[i][j]+r[i][k]*q[k][j];}cout<"<for(i=0;i{//k=0;//cout<<"R*Q的第"<"<for(j=0;j<7;j++){if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
for(k=0,qr[i][j]=0;kqr[i][j]=qr[i][j]+r[i][k]*q[k][j];}cout<"<for(i=0;i{//k=0;//cout<<"R*Q的第"<"<for(j=0;j<7;j++){if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
qr[i][j]=qr[i][j]+r[i][k]*q[k][j];
cout<"<for(i=0;i{//k=0;//cout<<"R*Q的第"<"<for(j=0;j<7;j++){if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
"<for(i=0;i{//k=0;//cout<<"R*Q的第"<"<for(j=0;j<7;j++){if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
for(i=0;i{//k=0;//cout<<"R*Q的第"<"<for(j=0;j<7;j++){if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
//k=0;
//cout<<"R*Q的第"<
"<for(j=0;j<7;j++){if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
cout<:scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
scientific)<//k++;//if(k%3==0)//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
//if(k%3==0)
//cout<}cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
cout<}cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
cout<"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
"<for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
for(i=0;i{for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
for(j=7;j{if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
if(fabs(qr[i][j])a[i][j]=0;cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
cout<:scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
scientific)<}cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
cout<}cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
cout<for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
for(i=0;i{if(L[i][1]==0)cout<<"λ"<elsecout<<"λ"<}cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
if(L[i][1]==0)
cout<<"λ"<
cout<"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
"<for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
for(k=0;k{if(L[k][1]==0)//判断特征值是否为实特征值{for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
if(L[k][1]==0)//判断特征值是否为实特征值
for(i=0;i{for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
for(j=0;j{if(i==j)a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];elsea[i][j]=sin(0.5*(i+1)+0.2*(j+1));}}Gauss(a,x);cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
a[i][j]=1.5*cos(i+1+1.2*(j+1))-L[k][0];
Gauss(a,x);
cout<<"λ"<"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
"<for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
for(j=0;j{cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
cout<}}elsecontinue;}}voidHouseholder(doublea[n][n])//拟上三角化函数{inti,j,k;intm=0;doubled,c,h,t;doubleu[n],p[n],q[n],w[n];for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
elsecontinue;
voidHouseholder(doublea[n][n])//拟上三角化函数
intm=0;
doubled,c,h,t;
doubleu[n],p[n],q[n],w[n];
for(i=0;i{for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
for(j=i+2;j{if(a[j][i]<=E)m=m+1;}if(m==(n-2-i))continue;for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
if(a[j][i]<=E)
m=m+1;
if(m==(n-2-i))
continue;
for(j=i+1,d=0;j{d=d+a[j][i]*a[j][i];}d=sqrt(d);c=-1*sgn(a[i+1][i])*d;h=c*c-c*a[i+1][i];for(j=i+2;j{u[j]=a[j][i];
d=d+a[j][i]*a[j][i];
d=sqrt(d);
c=-1*sgn(a[i+1][i])*d;
h=c*c-c*a[i+1][i];
for(j=i+2;j{u[j]=a[j][i];
u[j]=a[j][i];
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