/* origin: FreeBSD /usr/src/lib/msun/src/ld80/invtrig.c */ /*- * Copyright (c) 2008 David Schultz * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include "__invtrigl.h" #if LDBL_MANT_DIG == 64 && LDBL_MAX_EXP == 16384 /* * asinl() and acosl() */ const long double pS0 = 1.66666666666666666631e-01L, pS1 = -4.16313987993683104320e-01L, pS2 = 3.69068046323246813704e-01L, pS3 = -1.36213932016738603108e-01L, pS4 = 1.78324189708471965733e-02L, pS5 = -2.19216428382605211588e-04L, pS6 = -7.10526623669075243183e-06L, qS1 = -2.94788392796209867269e+00L, qS2 = 3.27309890266528636716e+00L, qS3 = -1.68285799854822427013e+00L, qS4 = 3.90699412641738801874e-01L, qS5 = -3.14365703596053263322e-02L; /* * atanl() */ const long double atanhi[] = { 4.63647609000806116202e-01L, 7.85398163397448309628e-01L, 9.82793723247329067960e-01L, 1.57079632679489661926e+00L, }; const long double atanlo[] = { 1.18469937025062860669e-20L, -1.25413940316708300586e-20L, 2.55232234165405176172e-20L, -2.50827880633416601173e-20L, }; const long double aT[] = { 3.33333333333333333017e-01L, -1.99999999999999632011e-01L, 1.42857142857046531280e-01L, -1.11111111100562372733e-01L, 9.09090902935647302252e-02L, -7.69230552476207730353e-02L, 6.66661718042406260546e-02L, -5.88158892835030888692e-02L, 5.25499891539726639379e-02L, -4.70119845393155721494e-02L, 4.03539201366454414072e-02L, -2.91303858419364158725e-02L, 1.24822046299269234080e-02L, }; const long double pi_lo = -5.01655761266833202345e-20L; #endif