Thread: Pow function

I am trying to find the nth root of a function.This is my code

Code:

#include <iostream>
#include <math.h>
using namespace std;

int main()
{
double a=625,b=1/2;

double x=pow(a,b);
cout<<x;
}

here its returning x=1. that is though I have made b double, the function is taking it as an integer. Why is that?