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/* -*- mode: c++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
Copyright (C) 2010 StatPro Italia srl
This file is part of QuantLib, a free-software/open-source library
for financial quantitative analysts and developers - http://quantlib.org/
QuantLib is free software: you can redistribute it and/or modify it
under the terms of the QuantLib license. You should have received a
copy of the license along with this program; if not, please email
<quantlib-dev@lists.sf.net>. The license is also available online at
<http://quantlib.org/license.shtml>.
This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the license for more details.
*/
#ifndef quantlib_math_constants_hpp
#define quantlib_math_constants_hpp
#include <cmath>
#ifndef M_E
#define M_E 2.71828182845904523536
#endif
#ifndef M_LOG2E
#define M_LOG2E 1.44269504088896340736
#endif
#ifndef M_LOG10E
#define M_LOG10E 0.434294481903251827651
#endif
#ifndef M_IVLN10
#define M_IVLN10 0.434294481903251827651
#endif
#ifndef M_LN2
#define M_LN2 0.693147180559945309417
#endif
#ifndef M_LOG2_E
#define M_LOG2_E 0.693147180559945309417
#endif
#ifndef M_LN10
#define M_LN10 2.30258509299404568402
#endif
#ifndef M_PI
# define M_PI 3.141592653589793238462643383280
#endif
#ifndef M_TWOPI
#define M_TWOPI (M_PI * 2.0)
#endif
#ifndef M_PI_2
#define M_PI_2 1.57079632679489661923
#endif
#ifndef M_PI_4
#define M_PI_4 0.785398163397448309616
#endif
#ifndef M_3PI_4
#define M_3PI_4 2.3561944901923448370E0
#endif
#ifndef M_SQRTPI
#define M_SQRTPI 1.77245385090551602792981
#endif
#ifndef M_1_PI
#define M_1_PI 0.318309886183790671538
#endif
#ifndef M_2_PI
#define M_2_PI 0.636619772367581343076
#endif
#ifndef M_1_SQRTPI
#define M_1_SQRTPI 0.564189583547756286948
#endif
#ifndef M_2_SQRTPI
#define M_2_SQRTPI 1.12837916709551257390
#endif
#ifndef M_SQRT2
#define M_SQRT2 1.41421356237309504880
#endif
#ifndef M_SQRT_2
#define M_SQRT_2 0.7071067811865475244008443621048490392848359376887
#endif
#ifndef M_SQRT1_2
#define M_SQRT1_2 0.7071067811865475244008443621048490392848359376887
#endif
#ifndef M_LN2LO
#define M_LN2LO 1.9082149292705877000E-10
#endif
#ifndef M_LN2HI
#define M_LN2HI 6.9314718036912381649E-1
#endif
#ifndef M_SQRT3
#define M_SQRT3 1.73205080756887719000
#endif
#ifndef M_INVLN2
#define M_INVLN2 1.4426950408889633870E0
#endif
/* This should ensure that no macro are redefined if we happen to
include <math.h> again, whether or not we're using our macros
or theirs. We can't know in advance, since it depends on the
order of inclusion of headers in client code. */
#ifdef _MSC_VER
#undef _USE_MATH_DEFINES
#endif
#endif
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