How to use the pow function in the C language?

In the C language, the pow function is used to calculate the power of a specified number. Its prototype is as follows:

double pow(double x, double y);

In this function, x is the base and y is the exponent. The function returns the result of x raised to the power of y.

Here is an example using the pow function:

#include <stdio.h>
#include <math.h>

int main() {
    double result = pow(2, 3);
    printf("2的3次幂为: %f\n", result);
    
    return 0;
}

The output result is:

2的3次幂为: 8.000000

Please note that the return value of the pow function is of type double, so you need to use the %f format specifier to print the result.