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+/* const.c
+ *
+ * Globally declared constants
+ *
+ *
+ *
+ * SYNOPSIS:
+ *
+ * extern double nameofconstant;
+ *
+ *
+ *
+ *
+ * DESCRIPTION:
+ *
+ * This file contains a number of mathematical constants and
+ * also some needed size parameters of the computer arithmetic.
+ * The values are supplied as arrays of hexadecimal integers
+ * for IEEE arithmetic; arrays of octal constants for DEC
+ * arithmetic; and in a normal decimal scientific notation for
+ * other machines. The particular notation used is determined
+ * by a symbol (DEC, IBMPC, or UNK) defined in the include file
+ * math.h.
+ *
+ * The default size parameters are as follows.
+ *
+ * For DEC and UNK modes:
+ * MACHEP = 1.38777878078144567553E-17 2**-56
+ * MAXLOG = 8.8029691931113054295988E1 log(2**127)
+ * MINLOG = -8.872283911167299960540E1 log(2**-128)
+ * MAXNUM = 1.701411834604692317316873e38 2**127
+ *
+ * For IEEE arithmetic (IBMPC):
+ * MACHEP = 1.11022302462515654042E-16 2**-53
+ * MAXLOG = 7.09782712893383996843E2 log(2**1024)
+ * MINLOG = -7.08396418532264106224E2 log(2**-1022)
+ * MAXNUM = 1.7976931348623158E308 2**1024
+ *
+ * The global symbols for mathematical constants are
+ * PI = 3.14159265358979323846 pi
+ * PIO2 = 1.57079632679489661923 pi/2
+ * PIO4 = 7.85398163397448309616E-1 pi/4
+ * SQRT2 = 1.41421356237309504880 sqrt(2)
+ * SQRTH = 7.07106781186547524401E-1 sqrt(2)/2
+ * LOG2E = 1.4426950408889634073599 1/log(2)
+ * SQ2OPI = 7.9788456080286535587989E-1 sqrt( 2/pi )
+ * LOGE2 = 6.93147180559945309417E-1 log(2)
+ * LOGSQ2 = 3.46573590279972654709E-1 log(2)/2
+ * THPIO4 = 2.35619449019234492885 3*pi/4
+ * TWOOPI = 6.36619772367581343075535E-1 2/pi
+ *
+ * These lists are subject to change.
+ */
+
+/* const.c */
+
+/*
+Cephes Math Library Release 2.3: March, 1995
+Copyright 1984, 1995 by Stephen L. Moshier
+*/
+
+#include <math.h>
+
+#ifdef UNK
+#if 1
+double MACHEP = 1.11022302462515654042E-16; /* 2**-53 */
+#else
+double MACHEP = 1.38777878078144567553E-17; /* 2**-56 */
+#endif
+double UFLOWTHRESH = 2.22507385850720138309E-308; /* 2**-1022 */
+#ifdef DENORMAL
+double MAXLOG = 7.09782712893383996732E2; /* log(MAXNUM) */
+/* double MINLOG = -7.44440071921381262314E2; */ /* log(2**-1074) */
+double MINLOG = -7.451332191019412076235E2; /* log(2**-1075) */
+#else
+double MAXLOG = 7.08396418532264106224E2; /* log 2**1022 */
+double MINLOG = -7.08396418532264106224E2; /* log 2**-1022 */
+#endif
+double MAXNUM = 1.79769313486231570815E308; /* 2**1024*(1-MACHEP) */
+double PI = 3.14159265358979323846; /* pi */
+double PIO2 = 1.57079632679489661923; /* pi/2 */
+double PIO4 = 7.85398163397448309616E-1; /* pi/4 */
+double SQRT2 = 1.41421356237309504880; /* sqrt(2) */
+double SQRTH = 7.07106781186547524401E-1; /* sqrt(2)/2 */
+double LOG2E = 1.4426950408889634073599; /* 1/log(2) */
+double SQ2OPI = 7.9788456080286535587989E-1; /* sqrt( 2/pi ) */
+double LOGE2 = 6.93147180559945309417E-1; /* log(2) */
+double LOGSQ2 = 3.46573590279972654709E-1; /* log(2)/2 */
+double THPIO4 = 2.35619449019234492885; /* 3*pi/4 */
+double TWOOPI = 6.36619772367581343075535E-1; /* 2/pi */
+#ifdef INFINITIES
+double INFINITY = 1.0/0.0; /* 99e999; */
+#else
+double INFINITY = 1.79769313486231570815E308; /* 2**1024*(1-MACHEP) */
+#endif
+#ifdef NANS
+double NAN = 1.0/0.0 - 1.0/0.0;
+#else
+double NAN = 0.0;
+#endif
+#ifdef MINUSZERO
+double NEGZERO = -0.0;
+#else
+double NEGZERO = 0.0;
+#endif
+#endif
+
+#ifdef IBMPC
+ /* 2**-53 = 1.11022302462515654042E-16 */
+unsigned short MACHEP[4] = {0x0000,0x0000,0x0000,0x3ca0};
+unsigned short UFLOWTHRESH[4] = {0x0000,0x0000,0x0000,0x0010};
+#ifdef DENORMAL
+ /* log(MAXNUM) = 7.09782712893383996732224E2 */
+unsigned short MAXLOG[4] = {0x39ef,0xfefa,0x2e42,0x4086};
+ /* log(2**-1074) = - -7.44440071921381262314E2 */
+/*unsigned short MINLOG[4] = {0x71c3,0x446d,0x4385,0xc087};*/
+unsigned short MINLOG[4] = {0x3052,0xd52d,0x4910,0xc087};
+#else
+ /* log(2**1022) = 7.08396418532264106224E2 */
+unsigned short MAXLOG[4] = {0xbcd2,0xdd7a,0x232b,0x4086};
+ /* log(2**-1022) = - 7.08396418532264106224E2 */
+unsigned short MINLOG[4] = {0xbcd2,0xdd7a,0x232b,0xc086};
+#endif
+ /* 2**1024*(1-MACHEP) = 1.7976931348623158E308 */
+unsigned short MAXNUM[4] = {0xffff,0xffff,0xffff,0x7fef};
+unsigned short PI[4] = {0x2d18,0x5444,0x21fb,0x4009};
+unsigned short PIO2[4] = {0x2d18,0x5444,0x21fb,0x3ff9};
+unsigned short PIO4[4] = {0x2d18,0x5444,0x21fb,0x3fe9};
+unsigned short SQRT2[4] = {0x3bcd,0x667f,0xa09e,0x3ff6};
+unsigned short SQRTH[4] = {0x3bcd,0x667f,0xa09e,0x3fe6};
+unsigned short LOG2E[4] = {0x82fe,0x652b,0x1547,0x3ff7};
+unsigned short SQ2OPI[4] = {0x3651,0x33d4,0x8845,0x3fe9};
+unsigned short LOGE2[4] = {0x39ef,0xfefa,0x2e42,0x3fe6};
+unsigned short LOGSQ2[4] = {0x39ef,0xfefa,0x2e42,0x3fd6};
+unsigned short THPIO4[4] = {0x21d2,0x7f33,0xd97c,0x4002};
+unsigned short TWOOPI[4] = {0xc883,0x6dc9,0x5f30,0x3fe4};
+#ifdef INFINITIES
+unsigned short INFINITY[4] = {0x0000,0x0000,0x0000,0x7ff0};
+#else
+unsigned short INFINITY[4] = {0xffff,0xffff,0xffff,0x7fef};
+#endif
+#ifdef NANS
+unsigned short NAN[4] = {0x0000,0x0000,0x0000,0x7ffc};
+#else
+unsigned short NAN[4] = {0x0000,0x0000,0x0000,0x0000};
+#endif
+#ifdef MINUSZERO
+unsigned short NEGZERO[4] = {0x0000,0x0000,0x0000,0x8000};
+#else
+unsigned short NEGZERO[4] = {0x0000,0x0000,0x0000,0x0000};
+#endif
+#endif
+
+#ifdef MIEEE
+ /* 2**-53 = 1.11022302462515654042E-16 */
+unsigned short MACHEP[4] = {0x3ca0,0x0000,0x0000,0x0000};
+unsigned short UFLOWTHRESH[4] = {0x0010,0x0000,0x0000,0x0000};
+#ifdef DENORMAL
+ /* log(2**1024) = 7.09782712893383996843E2 */
+unsigned short MAXLOG[4] = {0x4086,0x2e42,0xfefa,0x39ef};
+ /* log(2**-1074) = - -7.44440071921381262314E2 */
+/* unsigned short MINLOG[4] = {0xc087,0x4385,0x446d,0x71c3}; */
+unsigned short MINLOG[4] = {0xc087,0x4910,0xd52d,0x3052};
+#else
+ /* log(2**1022) = 7.08396418532264106224E2 */
+unsigned short MAXLOG[4] = {0x4086,0x232b,0xdd7a,0xbcd2};
+ /* log(2**-1022) = - 7.08396418532264106224E2 */
+unsigned short MINLOG[4] = {0xc086,0x232b,0xdd7a,0xbcd2};
+#endif
+ /* 2**1024*(1-MACHEP) = 1.7976931348623158E308 */
+unsigned short MAXNUM[4] = {0x7fef,0xffff,0xffff,0xffff};
+unsigned short PI[4] = {0x4009,0x21fb,0x5444,0x2d18};
+unsigned short PIO2[4] = {0x3ff9,0x21fb,0x5444,0x2d18};
+unsigned short PIO4[4] = {0x3fe9,0x21fb,0x5444,0x2d18};
+unsigned short SQRT2[4] = {0x3ff6,0xa09e,0x667f,0x3bcd};
+unsigned short SQRTH[4] = {0x3fe6,0xa09e,0x667f,0x3bcd};
+unsigned short LOG2E[4] = {0x3ff7,0x1547,0x652b,0x82fe};
+unsigned short SQ2OPI[4] = {0x3fe9,0x8845,0x33d4,0x3651};
+unsigned short LOGE2[4] = {0x3fe6,0x2e42,0xfefa,0x39ef};
+unsigned short LOGSQ2[4] = {0x3fd6,0x2e42,0xfefa,0x39ef};
+unsigned short THPIO4[4] = {0x4002,0xd97c,0x7f33,0x21d2};
+unsigned short TWOOPI[4] = {0x3fe4,0x5f30,0x6dc9,0xc883};
+#ifdef INFINITIES
+unsigned short INFINITY[4] = {0x7ff0,0x0000,0x0000,0x0000};
+#else
+unsigned short INFINITY[4] = {0x7fef,0xffff,0xffff,0xffff};
+#endif
+#ifdef NANS
+unsigned short NAN[4] = {0x7ff8,0x0000,0x0000,0x0000};
+#else
+unsigned short NAN[4] = {0x0000,0x0000,0x0000,0x0000};
+#endif
+#ifdef MINUSZERO
+unsigned short NEGZERO[4] = {0x8000,0x0000,0x0000,0x0000};
+#else
+unsigned short NEGZERO[4] = {0x0000,0x0000,0x0000,0x0000};
+#endif
+#endif
+
+#ifdef DEC
+ /* 2**-56 = 1.38777878078144567553E-17 */
+unsigned short MACHEP[4] = {0022200,0000000,0000000,0000000};
+unsigned short UFLOWTHRESH[4] = {0x0080,0x0000,0x0000,0x0000};
+ /* log 2**127 = 88.029691931113054295988 */
+unsigned short MAXLOG[4] = {041660,007463,0143742,025733,};
+ /* log 2**-128 = -88.72283911167299960540 */
+unsigned short MINLOG[4] = {0141661,071027,0173721,0147572,};
+ /* 2**127 = 1.701411834604692317316873e38 */
+unsigned short MAXNUM[4] = {077777,0177777,0177777,0177777,};
+unsigned short PI[4] = {040511,007732,0121041,064302,};
+unsigned short PIO2[4] = {040311,007732,0121041,064302,};
+unsigned short PIO4[4] = {040111,007732,0121041,064302,};
+unsigned short SQRT2[4] = {040265,002363,031771,0157145,};
+unsigned short SQRTH[4] = {040065,002363,031771,0157144,};
+unsigned short LOG2E[4] = {040270,0125073,024534,013761,};
+unsigned short SQ2OPI[4] = {040114,041051,0117241,0131204,};
+unsigned short LOGE2[4] = {040061,071027,0173721,0147572,};
+unsigned short LOGSQ2[4] = {037661,071027,0173721,0147572,};
+unsigned short THPIO4[4] = {040426,0145743,0174631,007222,};
+unsigned short TWOOPI[4] = {040042,0174603,067116,042025,};
+/* Approximate infinity by MAXNUM. */
+unsigned short INFINITY[4] = {077777,0177777,0177777,0177777,};
+unsigned short NAN[4] = {0000000,0000000,0000000,0000000};
+#ifdef MINUSZERO
+unsigned short NEGZERO[4] = {0000000,0000000,0000000,0100000};
+#else
+unsigned short NEGZERO[4] = {0000000,0000000,0000000,0000000};
+#endif
+#endif
+
+#ifndef UNK
+extern unsigned short MACHEP[];
+extern unsigned short UFLOWTHRESH[];
+extern unsigned short MAXLOG[];
+extern unsigned short UNDLOG[];
+extern unsigned short MINLOG[];
+extern unsigned short MAXNUM[];
+extern unsigned short PI[];
+extern unsigned short PIO2[];
+extern unsigned short PIO4[];
+extern unsigned short SQRT2[];
+extern unsigned short SQRTH[];
+extern unsigned short LOG2E[];
+extern unsigned short SQ2OPI[];
+extern unsigned short LOGE2[];
+extern unsigned short LOGSQ2[];
+extern unsigned short THPIO4[];
+extern unsigned short TWOOPI[];
+extern unsigned short INFINITY[];
+extern unsigned short NAN[];
+extern unsigned short NEGZERO[];
+#endif
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