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("$FreeBSD$");
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