c++ square function code example

Example 1: pow c++

#include <iostream>
#include <cmath>
using namespace std;
int main ()
{
  double base, exponent, result;		
  base = 3.4;	
  exponent = 4.4;	
  result = pow(base, exponent);		
  cout << base << "^" << exponent << " = " << result;		
  return 0;
}

Example 2: square c++

#include <iostream>
#include <cmath>
using namespace std;

int main()
{
	double x = 10.25, result;
	result = sqrt(x);
	cout << "Square root of " << x << " is " << result << endl;

	return 0;
}

Example 3: exponents c++

pow(base, exponent); //must #include <cmath> to use pow()

example: 

#include <iostream>
#include <cmath> //must include this library

int main ()
{
  	int y; 
	int x =10; 
  	y = pow(x,2); // y = x^2
}

Example 4: pow in cpp header file

#include<cmath> //header file for pow fun


   pow(a,b)    // a^b

Example 5: powers of 2 in cpp

// If not using any extra libraries
// Powers of 2. If finding 2^n
int main() {
  int ans = 1 >> n;
}
// Suppose we want to find x ^ y
void power(int x, int y) {
  int ans = 1;
  for (int i = 0; i < y; i++) {
    ans *= x;
  }
  return ans;
}