FDIM(3) 		   Linux Programmers Manual		      FDIM(3)



NAME
       fdim, fdimf, fdiml - positive difference

SYNOPSIS
       #include 

       double fdim(double x, double y);
       float fdimf(float x, float y);
       long double fdiml(long double x, long double y);

       Compile with -std=c99; link with -lm.

DESCRIPTION
       These  functions  return max(x-y,0).  If x or y or both are NaN, Nan is
       returned.

CONFORMING TO
       C99.

SEE ALSO
       fmax(3)

COLOPHON
       This page is part of release 3.05 of the Linux  man-pages  project.   A
       description  of	the project, and information about reporting bugs, can
       be found at http://www.kernel.org/doc/man-pages/.



				  2003-07-24			       FDIM(3)