C Math fabs() Function
Example
Return the absolute (positive) value of different numbers:
printf("%f", fabs(-4.7));
printf("%f", fabs(4.7));
printf("%f", fabs(3));
Try it Yourself »
Definition and Usage
The fabs()
function returns the absolute (positive) value of a number.
The fabs()
function is defined in the <math.h>
header file.
Syntax
One of the following:
fabs(double number);
Parameter Values
Parameter | Description |
---|---|
number | Required. Specifies a number. |
Technical Details
Returns: |
A double value representing the absolute value of the specified number.
|
---|