c sqrt

1#include <stdio.h>
2#include <math.h>
3
4int main()
5{
6    double num = 6, squareRoot;
7
8    squareRoot =  sqrt(num);
9    printf("Square root of %lf =  %lf", num, squareRoot);
10
11    return 0;
12}

1#include <iostream>
2#include <cmath>
3using namespace std;
4
5int main() {
6  cout << "Square root of 25 = ";
7   
8  // print the square root of 25
9  cout << sqrt(25);
10
11  return 0;
12}
13
14// Output: Square root of 25 = 5

1double sqrt(double arg);