# C fabs Function

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

`double fabs(double number);`

## C fabs Function Example

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

```#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;
}```

## fabs Example 2

In this C Programming example, we allow users to enter their own values. Next, this program uses the fabs function to find the absolute positive number of the user-given value.

```#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;
}```
`````` Please Enter any Numeric Value :  -23.456

The Absolute Value of -23.46 = 23.4560``````