reactos/lib/sdk/crt/math/sinh.c

   1 /* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */
   2 #include <math.h>
   3
   4 /*
   5  * @implemented
   6  */
   7 double sinh(double x)
   8 {
   9  if(x >= 0.0)
  10  {
  11    const double epos = exp(x);
  12    return (epos - 1.0/epos) / 2.0;
  13  }
  14  else
  15  {
  16    const double eneg = exp(-x);
  17    return (1.0/eneg - eneg) / 2.0;
  18  }
  19 }