Double Exponent from user input

Question

So my question relates to double, I am trying to get an input from the user in decimal point for any value and its exponent also in decimal point to display the result after calculation in another function where the variables will pass values as double and I have used double the output as well but the end result is 1.00000 even though I have used the output specifier as %lf%.

#include <stdio.h>

double pwra (double, double);

int main()
{
    double number, power, xx;

    printf("Enter Number: ");
    scanf("%lf", &number);

    printf("Enter Number: ");
    scanf("%lf", &power);

    xx=pwra (number,power);

    printf("Result: %lf", xx);

    return 0;
} 

double pwra (double num, double pwr)
{
    int count;
    int result = 1;

    for(count=1;count<=pwr;count++)
    {
        result = result*num;
    }
    return result;
}

Answer 1

You have used the wrong type for result in the pwrs() function.

Change:

int result = 1;

to:

double result = 1.0;

Note that this type of simple mistake is easily identified if you learn to use your debugger. Further reading: How to debug small programs.

Also note that pwr should be an int, not a double, since your function only works with integer exponents.