2 * IBM Accurate Mathematical Library
3 * Written by International Business Machines Corp.
4 * Copyright (C) 2001, 2002 Free Software Foundation, Inc.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU Lesser General Public License as published by
8 * the Free Software Foundation; either version 2.1 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public License
17 * along with this program; if not, see <http://www.gnu.org/licenses/>.
20 /******************************************************************/
22 /* MODULE_NAME:upow.h */
24 /* common data and variables prototype and definition */
25 /******************************************************************/
34 /**/ nZERO
= {{0x80000000, 0}}, /* -0.0 */
35 /**/ INF
= {{0x7ff00000, 0x00000000}}, /* INF */
36 /**/ nINF
= {{0xfff00000, 0x00000000}}, /* -INF */
37 /**/ NaNQ
= {{0x7ff80000, 0x00000000}}, /* NaNQ */
38 /**/ sqrt_2
= {{0x3ff6a09e, 0x667f3bcc}}, /* sqrt(2) */
39 /**/ ln2a
= {{0x3fe62e42, 0xfefa3800}}, /* ln(2) 43 bits */
40 /**/ ln2b
= {{0x3d2ef357, 0x93c76730}}, /* ln(2)-ln2a */
41 /**/ bigu
= {{0x4297ffff, 0xfffffd2c}}, /* 1.5*2**42 -724*2**-10 */
42 /**/ bigv
= {{0x4207ffff, 0xfff8016a}}, /* 1.5*2**33-1+362*2**-19 */
43 /**/ t52
= {{0x43300000, 0x00000000}}, /* 2**52 */
44 /**/ two52e
= {{0x43300000, 0x000003ff}}; /* 2**52' */
49 /**/ nZERO
= {{0, 0x80000000}}, /* -0.0 */
50 /**/ INF
= {{0x00000000, 0x7ff00000}}, /* INF */
51 /**/ nINF
= {{0x00000000, 0xfff00000}}, /* -INF */
52 /**/ NaNQ
= {{0x00000000, 0x7ff80000}}, /* NaNQ */
53 /**/ sqrt_2
= {{0x667f3bcc, 0x3ff6a09e}}, /* sqrt(2) */
54 /**/ ln2a
= {{0xfefa3800, 0x3fe62e42}}, /* ln(2) 43 bits */
55 /**/ ln2b
= {{0x93c76730, 0x3d2ef357}}, /* ln(2)-ln2a */
56 /**/ bigu
= {{0xfffffd2c, 0x4297ffff}}, /* 1.5*2**42 -724*2**-10 */
57 /**/ bigv
= {{0xfff8016a, 0x4207ffff}}, /* 1.5*2**33-1+362*2**-19 */
58 /**/ t52
= {{0x00000000, 0x43300000}}, /* 2**52 */
59 /**/ two52e
= {{0x000003ff, 0x43300000}}; /* 2**52' */
64 const static double p2
=-0.5, p3
= 3.3333333333333333333e-1, p4
= -0.25,
65 q2
= -0.5, q3
= 3.3333333333331404e-01, q4
= -2.4999999999996436e-01,
66 q5
= 2.0000010500004459e-01, q6
= -1.6666678916688004e-01,
67 r3
= 3.33333333333333333372884096563030E-01,
68 r4
= -2.50000000000000000213574153875908E-01,
69 r5
= 1.99999999999683593814072199830603E-01,
70 r6
= -1.66666666666065494878165510225378E-01,
71 r7
= 1.42857517857114380606360005067609E-01,
72 r8
= -1.25000449999974370683775964001702E-01,
73 s3
= 0.333251953125000000e0
,
74 ss3
= 8.138020833333333333e-05,
75 s4
= -2.500000000000000000e-01,
76 s5
= 1.999999999999960937e-01,
77 s6
= -1.666666666666592447e-01,
78 s7
= 1.428571845238194705e-01,
79 s8
= -1.250000500000149097e-01;