| | 1 | /*- |
| | 2 | * Copyright (c) 2008 David Schultz <das@FreeBSD.ORG> |
| | 3 | * All rights reserved. |
| | 4 | * |
| | 5 | * Redistribution and use in source and binary forms, with or without |
| | 6 | * modification, are permitted provided that the following conditions |
| | 7 | * are met: |
| | 8 | * 1. Redistributions of source code must retain the above copyright |
| | 9 | * notice, this list of conditions and the following disclaimer. |
| | 10 | * 2. Redistributions in binary form must reproduce the above copyright |
| | 11 | * notice, this list of conditions and the following disclaimer in the |
| | 12 | * documentation and/or other materials provided with the distribution. |
| | 13 | * |
| | 14 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
| | 15 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| | 16 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| | 17 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
| | 18 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| | 19 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| | 20 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| | 21 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| | 22 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| | 23 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| | 24 | * SUCH DAMAGE. |
| | 25 | * |
| | 26 | * $FreeBSD: head/lib/msun/ld80/invtrig.c 181074 2008-07-31 22:41:26Z das $ |
| | 27 | */ |
| | 28 | |
| | 29 | #include "invtrig.h" |
| | 30 | |
| | 31 | /* |
| | 32 | * asinl() and acosl() |
| | 33 | */ |
| | 34 | const long double |
| | 35 | pS0 = 1.66666666666666666631e-01L, |
| | 36 | pS1 = -4.16313987993683104320e-01L, |
| | 37 | pS2 = 3.69068046323246813704e-01L, |
| | 38 | pS3 = -1.36213932016738603108e-01L, |
| | 39 | pS4 = 1.78324189708471965733e-02L, |
| | 40 | pS5 = -2.19216428382605211588e-04L, |
| | 41 | pS6 = -7.10526623669075243183e-06L, |
| | 42 | qS1 = -2.94788392796209867269e+00L, |
| | 43 | qS2 = 3.27309890266528636716e+00L, |
| | 44 | qS3 = -1.68285799854822427013e+00L, |
| | 45 | qS4 = 3.90699412641738801874e-01L, |
| | 46 | qS5 = -3.14365703596053263322e-02L; |
| | 47 | |
| | 48 | /* |
| | 49 | * atanl() |
| | 50 | */ |
| | 51 | const long double atanhi[] = { |
| | 52 | 4.63647609000806116202e-01L, |
| | 53 | 7.85398163397448309628e-01L, |
| | 54 | 9.82793723247329067960e-01L, |
| | 55 | 1.57079632679489661926e+00L, |
| | 56 | }; |
| | 57 | |
| | 58 | const long double atanlo[] = { |
| | 59 | 1.18469937025062860669e-20L, |
| | 60 | -1.25413940316708300586e-20L, |
| | 61 | 2.55232234165405176172e-20L, |
| | 62 | -2.50827880633416601173e-20L, |
| | 63 | }; |
| | 64 | |
| | 65 | const long double aT[] = { |
| | 66 | 3.33333333333333333017e-01L, |
| | 67 | -1.99999999999999632011e-01L, |
| | 68 | 1.42857142857046531280e-01L, |
| | 69 | -1.11111111100562372733e-01L, |
| | 70 | 9.09090902935647302252e-02L, |
| | 71 | -7.69230552476207730353e-02L, |
| | 72 | 6.66661718042406260546e-02L, |
| | 73 | -5.88158892835030888692e-02L, |
| | 74 | 5.25499891539726639379e-02L, |
| | 75 | -4.70119845393155721494e-02L, |
| | 76 | 4.03539201366454414072e-02L, |
| | 77 | -2.91303858419364158725e-02L, |
| | 78 | 1.24822046299269234080e-02L, |
| | 79 | }; |
| | 80 | |
| | 81 | const long double pi_lo = -5.01655761266833202345e-20L; |
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