How to write x raised to the nth power in C language

In C language, there are two main ways to calculate x raised to the nth power: using the pow() function: The pow() function provides standard calculations, and its syntax is double pow(double x, int n); Use a loop: If the pow() function is not available, you can use a loop to calculate manually. The syntax is double pow(double x, int n) { ... }

How to calculate x to the nth power in C language

In C language, there are two main methods to calculate x to the nth power:

Method 1: Use the pow() function

pow() The function is a standard function provided in the C math library and is used to calculate x raised to the nth power. The syntax is as follows:

<code class="c">double pow(double x, int n);</code>

where x is the base number and n is the exponent. pow() The function returns x raised to the n power.

Example:

<code class="c">#include <stdio.h>
#include <math.h>

int main() {
    double x = 2.5;
    int n = 3;

    double result = pow(x, n);

    printf("%f 的 %d 次方是 %f\n", x, n, result);

    return 0;
}</code>

Method 2: Using a loop

If not availablepow() function, you can also use a loop to manually calculate x raised to the nth power.

<code class="c">double pow(double x, int n) {
    double result = 1.0;

    for (int i = 0; i < n; i++) {
        result *= x;
    }

    return result;
}</code>

Example:

<code class="c">#include <stdio.h>

int main() {
    double x = 2.5;
    int n = 3;

    double result = pow(x, n);

    printf("%f 的 %d 次方是 %f\n", x, n, result);

    return 0;
}</code>

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