?? d9r6.cpp
字號:
#include "iostream.h"
void fpoly(double x, double p[], int np)
{
p[1] = 1.0;
for (int j = 2; j<=np; j++)
{
p[j] = p[j - 1] * x;
}
}
void main()
{
//program d9r6
//driver for routine fpoly
int nval = 15;
double dx = 0.1;
int npoly = 5;
double afunc[6];
double x;
cout<<" Powers of x"<<endl;
cout<<endl;
cout<<" x x^0 x^1 x^2 x^3 x^4"<<endl;
cout.setf(ios::left);
for (int i = 1; i<=nval; i++)
{
x =i * dx;
fpoly(x, afunc, npoly);
cout<<" ";
cout.width(7);
cout<<x;
for (int j = 1; j<=npoly; j++)
{
cout.width(9);
cout<<afunc[j];
}
cout<<endl;
}
}
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