COPYSIGN(N)         Linux Programmer's Manual         COPYSIGN(N)



NAME
       copysign - copy sign of a number

SYNOPSIS
       #include <math.h>

       double copysign(double x, double y);

DESCRIPTION
       The  copysign()  function  returns  a value whose absolute
       value matches x, but whose sign matches that of y.

CONFORMING TO
       BSD 4.3



GNU                         1993-06-06                COPYSIGN(N)