text: /*	$OpenBSD: s_csinhf.c,v 1.2 2010/07/18 18:42:26 guenther Exp $	*/
  /*
   * Copyright (c) 2008 Stephen L. Moshier <steve@moshier.net>
   *
   * Permission to use, copy, modify, and distribute this software for any
   * purpose with or without fee is hereby granted, provided that the above
   * copyright notice and this permission notice appear in all copies.
   *
   * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
   * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
   * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
   * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
   * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
   * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
   */
  
  /*							csinhf
   *
   *	Complex hyperbolic sine
   *
   *
   *
   * SYNOPSIS:
   *
   * float complex csinhf();
   * float complex z, w;
   *
   * w = csinhf (z);
   *
   * DESCRIPTION:
   *
   * csinh z = (cexp(z) - cexp(-z))/2
   *         = sinh x * cos y  +  i cosh x * sin y .
   *
   * ACCURACY:
   *
   *                      Relative error:
   * arithmetic   domain     # trials      peak         rms
   *    IEEE      -10,+10     30000       3.1e-16     8.2e-17
   *
   */
  
  #include <complex.h>
  #include <math.h>
  #include "math_private.h"
  
  float complex
  csinhf(float complex z)
  {
  	float complex w;
  	float x, y;
  
  	x = crealf(z);
  	y = cimagf(z);
  	w = sinhf (x) * cosf (y)  +  (coshf (x) * sinf (y)) * I;
  	return (w);
  }
  
  #if defined(__SHORT_DOUBLES_IMPL)
  #undef csinh
  __strong_alias(csinh, csinhf);
  #endif
  