c.rar_horner

#include <stdio.h> #include <math.h> main() { int i; float x0,a[5],b[5],d[4]; a[0]=-4.0; a[1]=3.0; a[2]=-3.0; a[3]=0.0; a[4]=2.0; x0=-2.0; b[4]=a[4]; d[3]=a[4]; for(i=3;i>=1;i--) { b[i]=x0*b[i+1]+a[i]; d[i-1]=x0*d[i]+b[i]; printf(" i=%d b[i]=%12.9f d[i-1]=%12.9f\n",i,b[i],d[i-1]); } b[0]=x0*b[1]+a[0]; printf(" p0=%12.9f p0p=%12.9f\n",b[0],d[0]); }