power in c++

#include <iostream>

// Function to calculate power using recursion
double power_recursive(double base, int exponent);

// Function to calculate power using iteration
double power_iterative(double base, int exponent);

int main() {
    // Test values
    double base = 2.5;
    int exponent = 3;

    // Calculate power using recursion
    double result_recursive = power_recursive(base, exponent);
    std::cout << "Power using recursion: " << result_recursive << std::endl;

    // Calculate power using iteration
    double result_iterative = power_iterative(base, exponent);
    std::cout << "Power using iteration: " << result_iterative << std::endl;

    return 0;
}

double power_recursive(double base, int exponent) {
    // Base case: exponent is 0
    if (exponent == 0) {
        return 1.0;
    }

    // Recursive case: calculate power using recursion
    return base * power_recursive(base, exponent - 1);
}

double power_iterative(double base, int exponent) {
    double result = 1.0;

    // Iterate through exponent, multiplying base each time
    for (int i = 0; i < exponent; ++i) {
        result *= base;
    }

    return result;
}