Totally rework the math library, this time based on the MacOs X

math library (which is itself based on the math lib from FreeBSD).
 -Erik

1 files changed, 0 insertions, 205 deletions

diff --git a/libm/double/spence.c b/libm/double/spence.c
deleted file mode 100644
index e2a56176b..000000000
--- a/libm/double/spence.c
+++ /dev/null
@@ -1,205 +0,0 @@
-/*							spence.c
- *
- *	Dilogarithm
- *
- *
- *
- * SYNOPSIS:
- *
- * double x, y, spence();
- *
- * y = spence( x );
- *
- *
- *
- * DESCRIPTION:
- *
- * Computes the integral
- *
- *                    x
- *                    -
- *                   | | log t
- * spence(x)  =  -   |   ----- dt
- *                 | |   t - 1
- *                  -
- *                  1
- *
- * for x >= 0.  A rational approximation gives the integral in
- * the interval (0.5, 1.5).  Transformation formulas for 1/x
- * and 1-x are employed outside the basic expansion range.
- *
- *
- *
- * ACCURACY:
- *
- *                      Relative error:
- * arithmetic   domain     # trials      peak         rms
- *    IEEE      0,4         30000       3.9e-15     5.4e-16
- *    DEC       0,4          3000       2.5e-16     4.5e-17
- *
- *
- */
-
-/*							spence.c */
-
-
-/*
-Cephes Math Library Release 2.8:  June, 2000
-Copyright 1985, 1987, 1989, 2000 by Stephen L. Moshier
-*/
-
-#include <math.h>
-
-#ifdef UNK
-static double A[8] = {
-  4.65128586073990045278E-5,
-  7.31589045238094711071E-3,
-  1.33847639578309018650E-1,
-  8.79691311754530315341E-1,
-  2.71149851196553469920E0,
-  4.25697156008121755724E0,
-  3.29771340985225106936E0,
-  1.00000000000000000126E0,
-};
-static double B[8] = {
-  6.90990488912553276999E-4,
-  2.54043763932544379113E-2,
-  2.82974860602568089943E-1,
-  1.41172597751831069617E0,
-  3.63800533345137075418E0,
-  5.03278880143316990390E0,
-  3.54771340985225096217E0,
-  9.99999999999999998740E-1,
-};
-#endif
-#ifdef DEC
-static unsigned short A[32] = {
-0034503,0013315,0034120,0157771,
-0036357,0135043,0016766,0150637,
-0037411,0007533,0005212,0161475,
-0040141,0031563,0023217,0120331,
-0040455,0104461,0007002,0155522,
-0040610,0034434,0065721,0120465,
-0040523,0006674,0105671,0054427,
-0040200,0000000,0000000,0000000,
-};
-static unsigned short B[32] = {
-0035465,0021626,0032367,0144157,
-0036720,0016326,0134431,0000406,
-0037620,0161024,0133701,0120766,
-0040264,0131557,0152055,0064512,
-0040550,0152424,0051166,0034272,
-0040641,0006233,0014672,0111572,
-0040543,0006674,0105671,0054425,
-0040200,0000000,0000000,0000000,
-};
-#endif
-#ifdef IBMPC
-static unsigned short A[32] = {
-0x1bff,0xa70a,0x62d9,0x3f08,
-0xda34,0x63be,0xf744,0x3f7d,
-0x5c68,0x6151,0x21eb,0x3fc1,
-0xf41b,0x64d1,0x266e,0x3fec,
-0x5b6a,0x21c0,0xb126,0x4005,
-0x3427,0x8d7a,0x0723,0x4011,
-0x2b23,0x9177,0x61b7,0x400a,
-0x0000,0x0000,0x0000,0x3ff0,
-};
-static unsigned short B[32] = {
-0xf90e,0xc69e,0xa472,0x3f46,
-0x2021,0xd723,0x039a,0x3f9a,
-0x343f,0x96f8,0x1c42,0x3fd2,
-0xad29,0xfa85,0x966d,0x3ff6,
-0xc717,0x8a4e,0x1aa2,0x400d,
-0x526f,0x6337,0x2193,0x4014,
-0x2b23,0x9177,0x61b7,0x400c,
-0x0000,0x0000,0x0000,0x3ff0,
-};
-#endif
-#ifdef MIEEE
-static unsigned short A[32] = {
-0x3f08,0x62d9,0xa70a,0x1bff,
-0x3f7d,0xf744,0x63be,0xda34,
-0x3fc1,0x21eb,0x6151,0x5c68,
-0x3fec,0x266e,0x64d1,0xf41b,
-0x4005,0xb126,0x21c0,0x5b6a,
-0x4011,0x0723,0x8d7a,0x3427,
-0x400a,0x61b7,0x9177,0x2b23,
-0x3ff0,0x0000,0x0000,0x0000,
-};
-static unsigned short B[32] = {
-0x3f46,0xa472,0xc69e,0xf90e,
-0x3f9a,0x039a,0xd723,0x2021,
-0x3fd2,0x1c42,0x96f8,0x343f,
-0x3ff6,0x966d,0xfa85,0xad29,
-0x400d,0x1aa2,0x8a4e,0xc717,
-0x4014,0x2193,0x6337,0x526f,
-0x400c,0x61b7,0x9177,0x2b23,
-0x3ff0,0x0000,0x0000,0x0000,
-};
-#endif
-
-#ifdef ANSIPROT
-extern double fabs ( double );
-extern double log ( double );
-extern double polevl ( double, void *, int );
-#else
-double fabs(), log(), polevl();
-#endif
-extern double PI, MACHEP;
-
-double spence(x)
-double x;
-{
-double w, y, z;
-int flag;
-
-if( x < 0.0 )
-	{
-	mtherr( "spence", DOMAIN );
-	return(0.0);
-	}
-
-if( x == 1.0 )
-	return( 0.0 );
-
-if( x == 0.0 )
-	return( PI*PI/6.0 );
-
-flag = 0;
-
-if( x > 2.0 )
-	{
-	x = 1.0/x;
-	flag |= 2;
-	}
-
-if( x > 1.5 )
-	{
-	w = (1.0/x) - 1.0;
-	flag |= 2;
-	}
-
-else if( x < 0.5 )
-	{
-	w = -x;
-	flag |= 1;
-	}
-
-else
-	w = x - 1.0;
-
-
-y = -w * polevl( w, A, 7) / polevl( w, B, 7 );
-
-if( flag & 1 )
-	y = (PI * PI)/6.0  - log(x) * log(1.0-x) - y;
-
-if( flag & 2 )
-	{
-	z = log(x);
-	y = -0.5 * z * z  -  y;
-	}
-
-return( y );
-}