From 7ce331c01ce6eb7b3f5c715a38a24359da9c6ee2 Mon Sep 17 00:00:00 2001
From: Eric Andersen <andersen@codepoet.org>
Date: Thu, 22 Nov 2001 14:04:29 +0000
Subject: 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

---
 libm/double/sinh.c | 148 -----------------------------------------------------
 1 file changed, 148 deletions(-)
 delete mode 100644 libm/double/sinh.c

(limited to 'libm/double/sinh.c')

diff --git a/libm/double/sinh.c b/libm/double/sinh.c
deleted file mode 100644
index 545bd6826..000000000
--- a/libm/double/sinh.c
+++ /dev/null
@@ -1,148 +0,0 @@
-/*							sinh.c
- *
- *	Hyperbolic sine
- *
- *
- *
- * SYNOPSIS:
- *
- * double x, y, sinh();
- *
- * y = sinh( x );
- *
- *
- *
- * DESCRIPTION:
- *
- * Returns hyperbolic sine of argument in the range MINLOG to
- * MAXLOG.
- *
- * The range is partitioned into two segments.  If |x| <= 1, a
- * rational function of the form x + x**3 P(x)/Q(x) is employed.
- * Otherwise the calculation is sinh(x) = ( exp(x) - exp(-x) )/2.
- *
- *
- *
- * ACCURACY:
- *
- *                      Relative error:
- * arithmetic   domain     # trials      peak         rms
- *    DEC      +- 88        50000       4.0e-17     7.7e-18
- *    IEEE     +-MAXLOG     30000       2.6e-16     5.7e-17
- *
- */
-
-/*
-Cephes Math Library Release 2.8:  June, 2000
-Copyright 1984, 1995, 2000 by Stephen L. Moshier
-*/
-
-#include <math.h>
-
-#ifdef UNK
-static double P[] = {
--7.89474443963537015605E-1,
--1.63725857525983828727E2,
--1.15614435765005216044E4,
--3.51754964808151394800E5
-};
-static double Q[] = {
-/* 1.00000000000000000000E0,*/
--2.77711081420602794433E2,
- 3.61578279834431989373E4,
--2.11052978884890840399E6
-};
-#endif
-
-#ifdef DEC
-static unsigned short P[] = {
-0140112,0015377,0042731,0163255,
-0142043,0134721,0146177,0123761,
-0143464,0122706,0034353,0006017,
-0144653,0140536,0157665,0054045
-};
-static unsigned short Q[] = {
-/*0040200,0000000,0000000,0000000,*/
-0142212,0155404,0133513,0022040,
-0044015,0036723,0173271,0011053,
-0145400,0150407,0023710,0001034
-};
-#endif
-
-#ifdef IBMPC
-static unsigned short P[] = {
-0x3cd6,0xe8bb,0x435f,0xbfe9,
-0xf4fe,0x398f,0x773a,0xc064,
-0x6182,0xc71d,0x94b8,0xc0c6,
-0xab05,0xdbf6,0x782b,0xc115
-};
-static unsigned short Q[] = {
-/*0x0000,0x0000,0x0000,0x3ff0,*/
-0x6484,0x96e9,0x5b60,0xc071,
-0x2245,0x7ed7,0xa7ba,0x40e1,
-0x0044,0xe4f9,0x1a20,0xc140
-};
-#endif
-
-#ifdef MIEEE
-static unsigned short P[] = {
-0xbfe9,0x435f,0xe8bb,0x3cd6,
-0xc064,0x773a,0x398f,0xf4fe,
-0xc0c6,0x94b8,0xc71d,0x6182,
-0xc115,0x782b,0xdbf6,0xab05
-};
-static unsigned short Q[] = {
-0xc071,0x5b60,0x96e9,0x6484,
-0x40e1,0xa7ba,0x7ed7,0x2245,
-0xc140,0x1a20,0xe4f9,0x0044
-};
-#endif
-
-#ifdef ANSIPROT
-extern double fabs ( double );
-extern double exp ( double );
-extern double polevl ( double, void *, int );
-extern double p1evl ( double, void *, int );
-#else
-double fabs(), exp(), polevl(), p1evl();
-#endif
-extern double INFINITY, MINLOG, MAXLOG, LOGE2;
-
-double sinh(x)
-double x;
-{
-double a;
-
-#ifdef MINUSZERO
-if( x == 0.0 )
-	return(x);
-#endif
-a = fabs(x);
-if( (x > (MAXLOG + LOGE2)) || (x > -(MINLOG-LOGE2) ) )
-	{
-	mtherr( "sinh", DOMAIN );
-	if( x > 0 )
-		return( INFINITY );
-	else
-		return( -INFINITY );
-	}
-if( a > 1.0 )
-	{
-	if( a >= (MAXLOG - LOGE2) )
-		{
-		a = exp(0.5*a);
-		a = (0.5 * a) * a;
-		if( x < 0 )
-			a = -a;
-		return(a);
-		}
-	a = exp(a);
-	a = 0.5*a - (0.5/a);
-	if( x < 0 )
-		a = -a;
-	return(a);
-	}
-
-a *= a;
-return( x + x * a * (polevl(a,P,3)/p1evl(a,Q,3)) );
-}
-- 
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