invtrig.c revision 181074
1181074Sdas/*- 2181074Sdas * Copyright (c) 2008 David Schultz <das@FreeBSD.ORG> 3181074Sdas * All rights reserved. 4181074Sdas * 5181074Sdas * Redistribution and use in source and binary forms, with or without 6181074Sdas * modification, are permitted provided that the following conditions 7181074Sdas * are met: 8181074Sdas * 1. Redistributions of source code must retain the above copyright 9181074Sdas * notice, this list of conditions and the following disclaimer. 10181074Sdas * 2. Redistributions in binary form must reproduce the above copyright 11181074Sdas * notice, this list of conditions and the following disclaimer in the 12181074Sdas * documentation and/or other materials provided with the distribution. 13181074Sdas * 14181074Sdas * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15181074Sdas * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16181074Sdas * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17181074Sdas * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18181074Sdas * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19181074Sdas * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20181074Sdas * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21181074Sdas * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22181074Sdas * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23181074Sdas * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24181074Sdas * SUCH DAMAGE. 25181074Sdas */ 26181074Sdas 27181074Sdas#include <sys/cdefs.h> 28181074Sdas__FBSDID("$FreeBSD: head/lib/msun/ld128/invtrig.c 181074 2008-07-31 22:41:26Z das $"); 29181074Sdas 30181074Sdas#include "invtrig.h" 31181074Sdas 32181074Sdas/* 33181074Sdas * asinl() and acosl() 34181074Sdas */ 35181074Sdasconst long double 36181074SdaspS0 = 1.66666666666666666666666666666700314e-01L, 37181074SdaspS1 = -7.32816946414566252574527475428622708e-01L, 38181074SdaspS2 = 1.34215708714992334609030036562143589e+00L, 39181074SdaspS3 = -1.32483151677116409805070261790752040e+00L, 40181074SdaspS4 = 7.61206183613632558824485341162121989e-01L, 41181074SdaspS5 = -2.56165783329023486777386833928147375e-01L, 42181074SdaspS6 = 4.80718586374448793411019434585413855e-02L, 43181074SdaspS7 = -4.42523267167024279410230886239774718e-03L, 44181074SdaspS8 = 1.44551535183911458253205638280410064e-04L, 45181074SdaspS9 = -2.10558957916600254061591040482706179e-07L, 46181074SdasqS1 = -4.84690167848739751544716485245697428e+00L, 47181074SdasqS2 = 9.96619113536172610135016921140206980e+00L, 48181074SdasqS3 = -1.13177895428973036660836798461641458e+01L, 49181074SdasqS4 = 7.74004374389488266169304117714658761e+00L, 50181074SdasqS5 = -3.25871986053534084709023539900339905e+00L, 51181074SdasqS6 = 8.27830318881232209752469022352928864e-01L, 52181074SdasqS7 = -1.18768052702942805423330715206348004e-01L, 53181074SdasqS8 = 8.32600764660522313269101537926539470e-03L, 54181074SdasqS9 = -1.99407384882605586705979504567947007e-04L; 55181074Sdas 56181074Sdas/* 57181074Sdas * atanl() 58181074Sdas */ 59181074Sdasconst long double atanhi[] = { 60181074Sdas 4.63647609000806116214256231461214397e-01L, 61181074Sdas 7.85398163397448309615660845819875699e-01L, 62181074Sdas 9.82793723247329067985710611014666038e-01L, 63181074Sdas 1.57079632679489661923132169163975140e+00L, 64181074Sdas}; 65181074Sdas 66181074Sdasconst long double atanlo[] = { 67181074Sdas 4.89509642257333492668618435220297706e-36L, 68181074Sdas 2.16795253253094525619926100651083806e-35L, 69181074Sdas -2.31288434538183565909319952098066272e-35L, 70181074Sdas 4.33590506506189051239852201302167613e-35L, 71181074Sdas}; 72181074Sdas 73181074Sdasconst long double aT[] = { 74181074Sdas 3.33333333333333333333333333333333125e-01L, 75181074Sdas -1.99999999999999999999999999999180430e-01L, 76181074Sdas 1.42857142857142857142857142125269827e-01L, 77181074Sdas -1.11111111111111111111110834490810169e-01L, 78181074Sdas 9.09090909090909090908522355708623681e-02L, 79181074Sdas -7.69230769230769230696553844935357021e-02L, 80181074Sdas 6.66666666666666660390096773046256096e-02L, 81181074Sdas -5.88235294117646671706582985209643694e-02L, 82181074Sdas 5.26315789473666478515847092020327506e-02L, 83181074Sdas -4.76190476189855517021024424991436144e-02L, 84181074Sdas 4.34782608678695085948531993458097026e-02L, 85181074Sdas -3.99999999632663469330634215991142368e-02L, 86181074Sdas 3.70370363987423702891250829918659723e-02L, 87181074Sdas -3.44827496515048090726669907612335954e-02L, 88181074Sdas 3.22579620681420149871973710852268528e-02L, 89181074Sdas -3.03020767654269261041647570626778067e-02L, 90181074Sdas 2.85641979882534783223403715930946138e-02L, 91181074Sdas -2.69824879726738568189929461383741323e-02L, 92181074Sdas 2.54194698498808542954187110873675769e-02L, 93181074Sdas -2.35083879708189059926183138130183215e-02L, 94181074Sdas 2.04832358998165364349957325067131428e-02L, 95181074Sdas -1.54489555488544397858507248612362957e-02L, 96181074Sdas 8.64492360989278761493037861575248038e-03L, 97181074Sdas -2.58521121597609872727919154569765469e-03L, 98181074Sdas}; 99181074Sdas 100181074Sdasconst long double pi_lo = 8.67181013012378102479704402604335225e-35L; 101