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Implementation of pow(x, n) Function

To calculate the power of a number in C, you can use the pow() function from the C standard library. Here's an example of how to use the pow() function:

Example:


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

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

    printf("%.2f to the power of %.2f is %.2f\n", base, exponent, result);

    return 0;
}

In this example:

  • We include the <math.h> header to use the pow() function.
  • We specify the base and exponent as double-precision floating-point numbers.
  • We call the pow() function with the base and exponent as arguments to calculate the result.
  • Finally, we print the result.

Output:


2.00 to the power of 3.00 is 8.00

The pow() function from the standard library handles the calculation of the power for you. If you need to implement your own pow(x, n) function for educational purposes or specific requirements, you can use a recursive approach, but be aware that efficiently handling negative exponents and optimizing for large exponents can be more complex. The standard library's pow() function is highly optimized and should be preferred for most practical use cases.

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