5iv.cpp

C/C++程序设计导论（第二版）》程序源文件

// calcroot.cpp  A program to calculate the square root of
// 	an input value;
#include <iostream.h>
#include <math.h>
void main()
{	float value;
	cout << "Enter a value: ";
	cin >> value;
	cout << "Square root is: " << sqrt(value) << endl;
}