Power Function in C

There is no built-in power() function like you might find in some other programming languages. Instead, you can use the pow() function, which is part of the C Standard Library and is declared in the <math.h> header. The pow() function is used to calculate the power of a number.

Here’s the syntax of the pow() function:

double pow(double base, double exponent);

• base: The base value.
• exponent: The exponent value.

The pow() function returns the result of raising the base to the power of exponent as a double value.

Here’s an example of how to use the pow() function:

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

int main() {
    double base = 2.0;
    double exponent = 3.0;
    double result;

    // Calculate 2^3
    result = pow(base, exponent);

    printf("%lf ^ %lf = %lf\n", base, exponent, result);

    return 0;
}

In this example, we calculate and print the result of 2^3 using the pow() function. The result will be 8.000000.

Make sure to include the <math.h> header and link against the math library (using the -lm flag when compiling) when using the pow() function. Additionally, be aware that the pow() function returns a double value, so you may need to cast the result to a different data type if needed.