fabs, fabsf : absolute value (magnitude)

Synopsis

#include <math.h>
double fabs(double x);
float fabsf(float x);
```### Description

fabs and fabsf calculate the absolute value (magnitude) of the argument x, by direct manipulation of the bit representation of x.### Returns

The calculated value is returned. No errors are detected.

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**Authoritative source**: BUSMASTER DITA help source `fabs.dita`, compiled into `BUSMASTER.CHM` with the application.