| /* Translated into C++ by SciPy developers in 2024. | |
| * Original header with Copyright information appears below. | |
| * | |
| * Since we support only IEEE-754 floating point numbers, conditional logic | |
| * supporting other arithmetic types has been removed. | |
| */ | |
| /* | |
| * | |
| * | |
| * const.c | |
| * | |
| * Globally declared constants | |
| * | |
| * | |
| * | |
| * SYNOPSIS: | |
| * | |
| * extern double nameofconstant; | |
| * | |
| * | |
| * | |
| * | |
| * DESCRIPTION: | |
| * | |
| * This file contains a number of mathematical constants and | |
| * also some needed size parameters of the computer arithmetic. | |
| * The values are supplied as arrays of hexadecimal integers | |
| * for IEEE arithmetic, and in a normal decimal scientific notation for | |
| * other machines. The particular notation used is determined | |
| * by a symbol (IBMPC, or UNK) defined in the include file | |
| * mconf.h. | |
| * | |
| * The default size parameters are as follows. | |
| * | |
| * For UNK mode: | |
| * MACHEP = 1.38777878078144567553E-17 2**-56 | |
| * MAXLOG = 8.8029691931113054295988E1 log(2**127) | |
| * MINLOG = -8.872283911167299960540E1 log(2**-128) | |
| * | |
| * For IEEE arithmetic (IBMPC): | |
| * MACHEP = 1.11022302462515654042E-16 2**-53 | |
| * MAXLOG = 7.09782712893383996843E2 log(2**1024) | |
| * MINLOG = -7.08396418532264106224E2 log(2**-1022) | |
| * | |
| * The global symbols for mathematical constants are | |
| * SQ2OPI = 7.9788456080286535587989E-1 sqrt( 2/pi ) | |
| * LOGSQ2 = 3.46573590279972654709E-1 log(2)/2 | |
| * THPIO4 = 2.35619449019234492885 3*pi/4 | |
| * | |
| * These lists are subject to change. | |
| */ | |
| /* const.c */ | |
| /* | |
| * Cephes Math Library Release 2.3: March, 1995 | |
| * Copyright 1984, 1995 by Stephen L. Moshier | |
| */ | |
| namespace xsf { | |
| namespace cephes { | |
| namespace detail { | |
| constexpr std::uint64_t MAXITER = 500; | |
| constexpr double MACHEP = 1.11022302462515654042E-16; // 2**-53 | |
| constexpr double MAXLOG = 7.09782712893383996732E2; // log(DBL_MAX) | |
| constexpr double MINLOG = -7.451332191019412076235E2; // log 2**-1022 | |
| constexpr double SQRT1OPI = 5.64189583547756286948E-1; // sqrt( 1/pi) | |
| constexpr double SQRT2OPI = 7.9788456080286535587989E-1; // sqrt( 2/pi ) | |
| constexpr double SQRT2PI = 0.79788456080286535587989; // sqrt(2pi) | |
| constexpr double LOGSQ2 = 3.46573590279972654709E-1; // log(2)/2 | |
| constexpr double THPIO4 = 2.35619449019234492885; // 3*pi/4 | |
| constexpr double SQRT3 = 1.732050807568877293527; // sqrt(3) | |
| constexpr double PI180 = 1.74532925199432957692E-2; // pi/180 | |
| constexpr double SQRTPI = 2.50662827463100050242E0; // sqrt(pi) | |
| constexpr double LOGPI = 1.14472988584940017414; // log(pi) | |
| constexpr double MAXGAM = 171.624376956302725; | |
| constexpr double LOGSQRT2PI = 0.9189385332046727; // log(sqrt(pi)) | |
| // Following two added by SciPy developers. | |
| // Euler's constant | |
| constexpr double SCIPY_EULER = 0.577215664901532860606512090082402431; | |
| // e as long double | |
| constexpr long double SCIPY_El = 2.718281828459045235360287471352662498L; | |
| } // namespace detail | |
| } // namespace cephes | |
| } // namespace xsf | |