fabsf man page on Darwin

fabsf man page on Darwin

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FABS(3)			 BSD Library Functions Manual		       FABS(3)

NAME
     fabs — floating-point absolute value function

SYNOPSIS
     #include <math.h>

     double
     fabs(double x);

     long double
     fabsl(long double x);

     float
     fabsf(float x);

DESCRIPTION
     The fabs() functions compute the absolute value of a floating-point num‐
     ber x.

SPECIAL VALUES
     fabs(�0) returns 0.

     fabs(�infinity) returns +infinity.

VECTOR OPERATIONS
     If you need to apply the fabs() function to SIMD vectors or arrays, using
     the following functions provided by the Accelerate.framework may give
     significantly better performance:

     #include <Accelerate/Accelerate.h>

     vFloat vfabsf(vFloat x);
     void vvfabsf( float *y, const float *x, const int *n);
     void vvfabs(double *y, const double *x, const int *n);

SEE ALSO
     abs(3), ceil(3), floor(3), rint(3), math(3)

STANDARDS
     The fabs() functions conform to ISO/IEC 9899:2011.

BSD			       December 11, 2006			   BSD

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