数学建模实验二Word文档下载推荐.docx

上传人:b****6 文档编号:21296534 上传时间:2023-01-29 格式:DOCX 页数:14 大小:58.56KB
下载 相关 举报
数学建模实验二Word文档下载推荐.docx_第1页
第1页 / 共14页
数学建模实验二Word文档下载推荐.docx_第2页
第2页 / 共14页
数学建模实验二Word文档下载推荐.docx_第3页
第3页 / 共14页
数学建模实验二Word文档下载推荐.docx_第4页
第4页 / 共14页
数学建模实验二Word文档下载推荐.docx_第5页
第5页 / 共14页
点击查看更多>>
下载资源
资源描述

数学建模实验二Word文档下载推荐.docx

《数学建模实验二Word文档下载推荐.docx》由会员分享,可在线阅读,更多相关《数学建模实验二Word文档下载推荐.docx(14页珍藏版)》请在冰豆网上搜索。

数学建模实验二Word文档下载推荐.docx

ans=

1221

P218

3.求函数f(x)=x^2+4x+4的最小值。

fun='

x^2+4*x+4'

ezplot(fun,[-12,8])

[X,fval,exitflag,output]=fminbnd(fun,-12,8)

>

Untitled8

fun=

x^2+4*x+4

X=

-2

fval=

0

exitflag=

1

output=

iterations:

5

funcCount:

6

algorithm:

'

goldensectionsearch,parabolicinterpolation'

message:

优化已终止:

当前的x满足使用1.000000e-04的OPTIONS.TolX的终止条件

'

4.在区间【-10,10】上,求函数f(x)=(x-2)^4*sin(x)-(x-1)^2*cos(x)的最小值

clear

(x-2)^4*sin(x)-(x-1)^2*cos(x)'

ezplot(fun,[-10,10])

[X,fval,exitflag,output]=fminbnd(fun,-10,10)

Untitled9

(x-2)^4*sin(x)-(x-1)^2*cos(x)

-2.2939

-247.6956

13

14

P222

1.求有约束的线性优化问题:

minf(x)=1/3*(x1+)^3+x2,约束条件为x1-1>

=0,x2>

=0.

min=1/3*(x1+1)^3+x2;

x1>

=1;

end

运行结果:

Localoptimalsolutionfound.

Objectivevalue:

2.666667

Infeasibilities:

0.000000

Extendedsolversteps:

Totalsolveriterations:

44

VariableValueReducedCost

X11.0000000.000000

X20.0000001.000000

RowSlackorSurplusDualPrice

12.666667-1.000000

20.000000-4.000000

2.求有约束的非线性规划问题:

minf(x)=2x1^2+2x2^2-2x1x2-4x1-6x2,

约束条件为:

x1+x2<

=2,

X1+5x2<

=5,

X1>

=0,

X2>

解:

min=2*x1^2+2*x2^2-2*x1*x2-4*x1-6*x2;

=2;

x1+5*x2<

=5;

-7.161290

0.4440892E-15

30

X11.1290320.000000

X20.77419350.000000

1-7.161290-1.000000

20.9677419E-010.000000

30.0000001.032258

二、lingo完成PPT上练习题;

1.

max=5*x1+8*x2;

=6;

5*x1+9*x2<

=45;

=0;

x2>

Globaloptimalsolutionfound.

41.25000

2

X12.2500000.000000

X23.7500000.000000

141.250001.000000

20.0000001.250000

30.0000000.7500000

42.2500000.000000

53.7500000.000000

2.

min=3*x^2+2*y^2+z^2+2*x*y-y*z-0.8*y*z;

x+y+z=1;

1.3*x+1.2*y+1.08*z>

=1.12;

x>

x<

=0.75;

y>

y<

z>

z<

0.2479167

Objectivebound:

93

X0.0000000.000000

Y0.39583330.000000

Z0.60416670.000000

10.2479167-1.000000

20.000000-0.4958333

30.7500000E-020.000000

40.000000-0.2958333

50.75000000.000000

60.39583330.000000

70.35416670.000000

80.60416670.000000

90.14583330.000000

3.

sets:

D/1..7/:

a;

endsets

f=a(7);

a

(1)=1;

a

(2)=1;

@for(D(i)|i#ge#3:

a(i)=a(i-1)+a(i-2));

Feasiblesolutionfound.

VariableValue

F13.00000

A

(1)1.000000

A

(2)1.000000

A(3)2.000000

A(4)3.000000

A(5)5.000000

A(6)8.000000

A(7)13.00000

RowSlackorSurplus

10.000000

20.000000

30.000000

40.000000

50.000000

60.000000

70.000000

80.000000

min=-x1-5*x2;

x1-x2>

=-2;

5*x1+6*x2<

=30;

x1<

=4;

@gin(x1);

@gin(x2);

-17.00000

X12.000000-1.000000

X23.000000-5.000000

1-17.00000-1.000000

21.0000000.000000

32.0000000.000000

42.0000000.000000

52.0000000.000000

63.0000000.000000

max=3*x1-2*x2+5*x3;

x1+2*x2-x3<

x1+4*x2+x3<

=3;

4*x2+x3<

@bin(x1);

@bin(x2);

@bin(x3);

8.000000

X11.000000-3.000000

X20.0000002.000000

X31.000000-5.000000

18.0000001.000000

22.0000000.000000

55.0000000.000000

min=13*x1+9*x2+10*x3+11*x4+12*x5+8*x6;

x1+x4=400;

x2+x5=600;

x3+x6=500;

0.4*x1+1.1*x2+x3<

=800;

0.5*x4+1.2*x5+1.3*x6<

=900;

@gin(x3);

@gin(x4);

@gin(x5);

@gin(x6);

13800.00

X10.00000013.00000

X2600.00009.000000

X30.00000010.00000

X4400.000011.00000

X50.00000012.00000

X6500.00008.000000

113800.00-1.000000

20.0000000.000000

30.0000000.000000

40.0000000.000000

5140.00000.000000

650.000000.000000

4.

cities/s,a1,a2,a3,

b1,b2,c1,c2,t/:

l;

roads(cities,cities)/

s,a1s,a2s,a3

a1,b1a1,b2a2,b1

a2,b2a3,b1a3,b2

b1,c1b1,c2b2,c1b2,c2

c1,tc2,t/:

d;

data:

d=633

658674

6789

56;

enddata

l

(1)=0;

@for(cities(i)|

i#gt#@index(s):

l(i)=@min(

roads(j,i):

l(j)+d(j,i)));

Feasiblesolutionfound.

L(S)0.000000

L(A1)6.000000

L(A2)3.000000

L(A3)3.000000

L(B1)10.00000

L(B2)7.000000

L(C1)15.00000

L(C2)16.00000

L(T)20.00000

D(S,A1)6.000000

D(S,A2)3.000000

D(S,A3)3.000000

D(A1,B1)6.000000

D(A1,B2)5.000000

D(A2,B1)8.000000

D(A2,B2)6.000000

D(A3,B1)7.000000

D(A3,B2)4.000000

D(B1,C1)6.000000

D(B1,C2)7.000000

D(B2,C1)8.000000

D(B2,C2)9.000000

D(C1,T)5.000000

D(C2,T)6.000000

90.000000

展开阅读全文
相关资源
猜你喜欢
相关搜索

当前位置:首页 > 职业教育 > 职业技术培训

copyright@ 2008-2022 冰豆网网站版权所有

经营许可证编号:鄂ICP备2022015515号-1