// ConsoleApplication1.cpp : 定義控制台應用程式的入口點。
//P136
#include "stdafx.h"
#include <iostream>
#define f(x) (x*exp(x)-1)
#define g(x) (exp(x)+x*exp(x))
using namespace std;
int main()
{
double x0, x1, e;
int k, N;
cout << "請輸入x0,e,N" << endl;
cin >> x0 >> e >> N;
k = 1;
while(1)
{
if (g(x0) == 0 )
{
cout << "奇異标志" << endl;
break;
}
x1 = x0 - f(x0) / f(x1);
if (fabs(x1 - x0) < e)
{
cout << x1;
break;
}
if (k == N)
{
cout << "疊代失敗!" << endl;
break;
}
k++;
x0 = x1;
}
return 0;
}