C program to enter any number and calculate its square root

C program to enter any number and calculate its square root.

There are you will learn how to find the square root of any number in the C language.

Formula:

r = n^(1/2)

where:

r = root

n = number

There are two ways to implement these formulae:

• By using the sqrt() function
• Second, by using the pow() function

1. By using the sqrt() function

// C program to calculate the square root of a number by using the sqrt() function
#include <stdio.h>
#include <math.h>
// to import the sqrt() function

int main() {
    double n, r;
    
    // n = number
    // r = root

    printf("Enter any number to find the square root::\n");
    scanf("%lf\n", &n);

    /* Calculate square root of number */
    r = sqrt(n);

    // Output
    printf("Square root of %.2lf = %.2lf", n, r);
    return 0;
}

Run Program

Output:

2. By using the pow() function

// C program to calculate the square root of a number by using the pow() function
#include <stdio.h>
#include <math.h>
// to import the pow() function

int main() {
    double n, r;
    
    // n = number
    // r = root

    printf("Enter any number to find the square root::\n");
    scanf("%lf\n", &n);

    /* Calculate square root of number */
    r = pow(n, 0.5);

    // Output
    printf("Square root of %.2lf = %.2lf", n, r);
    return 0;
}

Run Program

Output: