pex2_4.cpp

数据结构C++代码,经典代码,受益多多,希望大家多多支持

#include <iostream.h>
#include <iomanip.h>

void main(void)
{
	double x = 1, d;
	double inc = double(1)/10;
	
	cout.setf(ios::scientific);
	cout.precision(18);

	while ((d = x+inc) != 1)
	{
		cout << "For increment " << inc 
		     << "  value is " << d << endl;
		inc *= double(1)/10;
	}
}

/*
<Run>

For increment 1.000000000000000060e-01  value is 1.100000000000000090e+00
For increment 1.000000000000000190e-02  value is 1.010000000000000010e+00
For increment 1.000000000000000240e-03  value is 1.000999999999999890e+00
For increment 1.000000000000000320e-04  value is 1.000099999999999990e+00
For increment 1.000000000000000420e-05  value is 1.000010000000000070e+00
For increment 1.000000000000000380e-06  value is 1.000000999999999920e+00
For increment 1.000000000000000480e-07  value is 1.000000100000000060e+00
For increment 1.000000000000000520e-08  value is 1.000000009999999940e+00
For increment 1.000000000000000480e-09  value is 1.000000001000000080e+00
For increment 1.000000000000000550e-10  value is 1.000000000100000010e+00
For increment 1.000000000000000590e-11  value is 1.000000000010000000e+00
For increment 1.000000000000000590e-12  value is 1.000000000001000090e+00
For increment 1.000000000000000660e-13  value is 1.000000000000099920e+00
For increment 1.000000000000000790e-14  value is 1.000000000000009990e+00
For increment 1.000000000000000870e-15  value is 1.000000000000001110e+00
For increment 1.000000000000000970e-16  value is 1.000000000000000000e+00
For increment 1.000000000000001000e-17  value is 1.000000000000000000e+00
For increment 1.000000000000001030e-18  value is 1.000000000000000000e+00
For increment 1.000000000000001060e-19  value is 1.000000000000000000e+00
*/