#ifndef INCLUDED_NJN_DOUBLETYPE #define INCLUDED_NJN_DOUBLETYPE /* $Id: $ * =========================================================================== * * PUBLIC DOMAIN NOTICE * National Center for Biotechnology Information * * This software/database is a "United States Government Work" under the * terms of the United States Copyright Act. It was written as part of * the author's offical duties as a United States Government employee and * thus cannot be copyrighted. This software/database is freely available * to the public for use. The National Library of Medicine and the U.S. * Government have not placed any restriction on its use or reproduction. * * Although all reasonable efforts have been taken to ensure the accuracy * and reliability of the software and data, the NLM and the U.S. * Government do not and cannot warrant the performance or results that * may be obtained by using this software or data. The NLM and the U.S. * Government disclaim all warranties, express or implied, including * warranties of performance, merchantability or fitness for any particular * purpose. * * Please cite the author in any work or product based on this material. * * ===========================================================================*/ /***************************************************************************** File name: njn_doubletype.hpp Author: John Spouge Contents: ******************************************************************************/ namespace Njn { namespace DoubleType { // Constants const double ROOT_2 = 1.4142135623730951e+000; // square root of 2.0 const double ROOT_10 = 3.1622776601683795e+000; // square root of 10.0 const double PI = 3.1415926535897931e+000; // pi = ratio circumference to diameter const double ROOT_PI = 1.7724538509055159e+000; // square root of pi const double ROOT_2_PI = 2.5066282746310002e+000; // square root of 2.0 * pi const double E = 2.7182818284590451e+000; // base of natural logarithms const double LN_2 = 6.9314718055994529e-001; // natural log of 2.0 const double LN_10 = 2.3025850929940459e+000; // natural log of 10.0 const double LN_LN_2 = -3.6651292058166435e-001; // log of log of 2.0 const double EULER = 0.5772156649015325e+000; // Euler's constant gamma } } #endif //! INCLUDED