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C Language Example - Calculating the nth Power of a Number

C Language Examples

Calculating the nth power of a number, for example: 2

Example - Using while Loop

#include <stdio.h>

int main()
{
    int base, exponent;

    long long result = 1;

    printf("Base: ");
    scanf("%d", &base);

    printf("Exponent: ");
    scanf("%d", &exponent);

    while (exponent != 0)
    {
        result *= base;
        --exponent;
    }
    printf("Result: %lld", result);

    return 0;
}

Running Result:

Base: 2
Exponent: 3
Result: 8

Example - Using pow() Function

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

int main()
{
    double base, exponent, result;

    printf("Base: ");
    scanf("%lf", &base);

    printf("Exponent: ");
    scanf("%lf", &exponent);

    // Calculate result
    result = pow(base, exponent);

    printf("%.1lf^%.1lf = %.2lf", base, exponent, result);

    return 0;
}

Running Result:

Base: 2
Exponent: 3
2.0^3.0 = 8.00

Example - Using Recursion

#include <stdio.h>

int power(int n1, int n2);

int main()
{
    int base, powerRaised, result;

    printf("Base: ");
    scanf("%d", &base);

    printf("Exponent (positive integer): ");
    scanf("%d", &powerRaised);

    result = power(base, powerRaised);

    printf("%d^%d = %d", base, powerRaised, result);
    return 0;
}

int power(int base, int powerRaised)
{
    if (powerRaised != 0)
        return (base * power(base, powerRaised - 1));
    else
        return 1;
}

C Language Examples

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