Question

How to use sqrt() function to get the square root of N in C++

Answer 1

#include <iostream>
#include <cmath>

using namespace std;

int main()
{
	cout << "sqrt(9) = " << sqrt(9) << endl;
	cout << "sqrt(1024) = " << sqrt(1024) << endl;
	cout << "sqrt(100) = " << sqrt(100) << endl;
	cout << "sqrt(2) = " << sqrt(2) << endl;

	return 0;
}

/*
run:

sqrt(9) = 3
sqrt(1024) = 32
sqrt(100) = 10
sqrt(2) = 1.41421

*/

 

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