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/*
SuperCollider real time audio synthesis system
Copyright (c) 2002 James McCartney. All rights reserved.
http://www.audiosynth.com
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
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
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#pragma once
#include <cmath>
#ifndef __FP__
const double pi = std::acos(-1.);
#else
const double sc_pi = std::acos(-1.);
# define pi sc_pi // hack to avoid osx warning about deprecated pi
#endif
/// pi / 2
const double pi2 = pi * .5;
/// 3pi / 2
const double pi32 = pi * 1.5;
/// 2pi
const double twopi = pi * 2.;
/// 1/2pi
const double rtwopi = 1. / twopi;
/// log(0.001)
const double log001 = std::log(0.001);
/// log(0.01)
const double log01 = std::log(0.01);
/// log(0.1)
const double log1 = std::log(0.1);
/// 1/log(2)
const double rlog2 = 1. / std::log(2.);
/// sqrt(2)
const double sqrt2 = std::sqrt(2.);
/// 1/sqrt(2)
const double rsqrt2 = 1. / sqrt2;
/// pi as float
const float pi_f = std::acos(-1.f);
/// pi / 2
const float pi2_f = pi_f * 0.5f;
/// 3pi / 2
const float pi32_f = pi_f * 1.5f;
/// 2pi
const float twopi_f = pi_f * 2.f;
/// sqrt(2)
const float sqrt2_f = std::sqrt(2.f);
/// 1/sqrt(2)
const float rsqrt2_f = 1.f / std::sqrt(2.f);
/// used to truncate precision
const float truncFloat = (float)(3. * std::pow(2.0, 22));
const double truncDouble = 3. * std::pow(2.0, 51);
/// used in the secant table for values very close to 1/0
const float kBadValue = 1e20f;
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