src/c/elementaryFunctions/acosh/dacoshs.c


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/*
 *  Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
 *  Copyright (C) 2007-2008 - INRIA - Bruno JOFRET
 *
 *  This file must be used under the terms of the CeCILL.
 *  This source file is licensed as described in the file COPYING, which
 *  you should have received as part of this distribution.  The terms
 *  are also available at
 *  http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
 *
 */

#include <math.h>
#include "acosh.h"

#ifdef _MSC_VER
double acosh(double x)
{
	return log(x + sqrt(x * x - 1));
}
#endif

double	       dacoshs(double x) {
  return (acosh(x));
}