d9r6.cpp

来自「工程算法 这是一个很有用的工程数值算法集锦」· C++ 代码 · 共 31 行

#include "iostream.h"

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;
    }
}