// Copyright(c) 2009-2013 Accellera Systems Initiative Inc. // 1370 Trancas Street #163, Napa, CA 94558, USA. // // The material in constants.vams is an essential part of the Accellera Systems // Initiative ("Accellera") Verilog-AMS Language Standard. Verbatim copies of // the material in this Annex may be used and distributed without restriction. // All other uses require permission from Accellera IP Committee // (ipr-chair@lists.accellera.org). // All other rights reserved. // Mathematical and physical constants `ifdef CONSTANTS_VAMS `else `define CONSTANTS_VAMS 1 // M_ is a mathmatical constant `define M_E 2.7182818284590452354 `define M_LOG2E 1.4426950408889634074 `define M_LOG10E 0.43429448190325182765 `define M_LN2 0.69314718055994530942 `define M_LN10 2.30258509299404568402 `define M_PI 3.14159265358979323846 `define M_TWO_PI 6.28318530717958647693 `define M_PI_2 1.57079632679489661923 `define M_PI_4 0.78539816339744830962 `define M_1_PI 0.31830988618379067154 `define M_2_PI 0.63661977236758134308 `define M_2_SQRTPI 1.12837916709551257390 `define M_SQRT2 1.41421356237309504880 `define M_SQRT1_2 0.70710678118654752440 // The following constants have been taken from http://physics.nist.gov // P_ is a physical constant // charge of electron in coulombs `define P_Q 1.602176462e-19 // speed of light in vacuum in meters/sec `define P_C 2.99792458e8 // Boltzmann's constant in joules/kelvin `define P_K 1.3806503e-23 // Planck’s constant in joules*sec `define P_H 6.62606876e-34 // permittivity of vacuum in farads/meter `define P_EPS0 8.854187817e-12 // permeability of vacuum in henrys/meter `define P_U0 (4.0e-7 * `M_PI) // zero celsius in kelvin `define P_CELSIUS0 273.15 `endif