In this tutorial, we are going to write a C program to write a functioning power that computes x raised to the power y for integers x and y and returns double type value in C Programming with practical program code and step-by-step full complete explanation.

C program to find the power of value using function


C program to find the power of value using function.

 
#include<stdio.h>
#include<conio.h>

void main()
{
    int x,y;
    double power(int,int);

    printf("Enter x, y: ");
    scanf("%d%d", &x,&y);
    printf("%d to power %d is %f",x,y,power(x,y));
}

double power(int x, int y)
{
    double p=1.0;

    if(y>=0)
        while(y--)
            p*=x;
    else
        while(y++)
            p/=x;
    return(p);
}


Output

 
Enter x,y: 16   2
16 to power 2 is 256.000000

Enter x,y: 16 -2
16 to power -2 is 0.003906