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FDIM(3)			 BSD Library Functions Manual		       FDIM(3)

NAME
     fdim, fdimf, fdiml	-- positive difference functions

LIBRARY
     Math Library (libm, -lm)

SYNOPSIS
     #include <math.h>

     double
     fdim(double x, double y);

     float
     fdimf(float x, float y);

     long double
     fdiml(long	double x, long double y);

DESCRIPTION
     The fdim(), fdimf(), and fdiml() functions	return the positive difference
     between x and y.  That is,	if x-y is positive, then x-y is	returned.  If
     either x or y is an NaN, then an NaN is returned.	Otherwise, the result
     is	+0.0.

     Overflow or underflow may occur if	the exact result is not	representable
     in	the return type.  No other exceptions are raised.

SEE ALSO
     fabs(3), fmax(3), fmin(3),	math(3)

STANDARDS
     The fdim(), fdimf(), and fdiml() functions	conform	to ISO/IEC 9899:1999
     ("ISO C99").

HISTORY
     These routines first appeared in FreeBSD 5.3.

BSD				 June 29, 2004				   BSD

NAME | LIBRARY | SYNOPSIS | DESCRIPTION | SEE ALSO | STANDARDS | HISTORY

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