reactos/lib/crtdll/math/cosh.c

   1 /* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */
   2 #include <crtdll/math.h>
   3
   4 double cosh(double x)
   5 {
   6   const double ebig = exp(fabs(x));
   7   return (ebig + 1.0/ebig) / 2.0;
   8 }