---

Manual Reference Pages  - FABS (3)

---

fabs, fabsf, fabsl - absolute value of floating-point number

CONTENTS

Synopsis
Description
Errors

#include <math.h> 



double fabs(double x); 




float fabsf(float x); 




long double fabsl(long double x); 

The fabs functions return the absolute value of the floating-point number x.

No errors can occur.

The fabs() function conforms to SVID 3, POSIX, BSD 4.3, ISO 9899. The other functions are from C99.

abs(3), ceil(3), floor(3), labs(3), rint(3)

Jump to page    or go to Top of page |  Section 3 |  Main Index.