1、#include#include#define N 6float sub(float a,float b,float x,float e);void main(void)float uN=100,121,144,169,196,225;float vN=10,11,12,13,14,15;float x,y,e,*p1,*p2;printf(Input number x E=:);scanf(%f%e,&x,&e);p1=u;p2=v;y=sub(p1,p2,x,e);printf(y=%fn,y);float sub(float *pp1,float *pp2,float x,float e
2、)float aN,bN,tN,y,y1,c;int i,k;for(i=0;iN;i+,pp1+)ai=*pp1;printf(%12.6f,ai);printf(n);for(i=0;iN;i+,*pp2+)bi=*pp2;printf(%12.6f,bi);printf(n);y1=b0;y=0;c=1.0;for(k=1;kN;k+)for(i=k;iN;i+) ti=(bi-bi-1)/(ai-ai-k); /t数组保存差商c=c*(x-ak-1);y1=y1+c*tk;if(fabs(y-y1)e)break;y=y1;for(i=k;iN;i+) bi=ti;return(y);
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