C fabs Function

The C fabs function is one of the Math Function, used to return the absolute positive number of a given number or specified expression.

In this article we will show you, How to write fabs function in C Programming language with example.

C fabs syntax

The basic syntax of the fabs in C Programming is as shown below.

double fabs(double number);

C fabs Function Example

The C math fabs Function allows you to return the absolute positive number. In this math fabs program, We are going to find the absolute positive number of different values, and display the output.

/* FABS in C Programming Example */

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

int main()
{
    printf("\n The Absolute Value of 0       = %.4f ", fabs(0));
    printf("\n The Absolute Value of 1       = %.4f ", fabs(1));
    
    printf("\n The Absolute Value of 152     = %.4f ", fabs(152));
    printf("\n The Absolute Value of 400.36  = %.4f ", fabs(400.36));
    
    printf("\n The Absolute Value of -27.32  = %.4f ", fabs(-27.32));  
    printf("\n The Absolute Value of -90     = %.4f ", fabs(-90));
  
    return 0;
}

OUTPUT

C fabs Example 2

In this example, we are allowing the user to enter their own value. Next, we used fabs function to find the absolute positive number of the user given value.

//* FABS in C Programming Example */

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

int main()
{
    float number, absValue;

    printf(" Please Enter any Numeric Value :  ");
    scanf("%f", &number);
  
    absValue = fabs(number);
  
    printf("\n The Absolute Value of %.2f = %.4f ", number, absValue);
  
    return 0;
}

OUTPUT

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