src/c/elementaryFunctions/acoth/dacoths.c


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// Copyright (C) 2017 - IIT Bombay - FOSSEE
//
// 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
// Organization: FOSSEE, IIT Bombay
// Author: Ashish Kamble
// Email: toolbox@scilab.in

#include "acoth.h"
#include "log.h"


double dacoths(double x) 
{
 return (log((1+x)/(x-1))/2);
}