vc0205.cpp

VC面向对象的学习教程

//example 2-5
#include <iostream.h>
#include <math.h>
void main()
{
	double e=1;
	double u=1;
	int n=1;
	do
	{
		u=u/n;
		e=e+u;
		n=n+1;
	}while(u>=1.0e-7);
	cout<<"e="<<e<<"(n="<<n<<")"<<endl;
}