1 files changed, 0 insertions, 63 deletions
diff --git a/libm/src/e_acosh.c b/libm/src/e_acosh.c
deleted file mode 100644
index ccb1521..0000000
--- a/libm/src/e_acosh.c
+++ /dev/null
@@ -1,63 +0,0 @@
-
-/* @(#)e_acosh.c 1.3 95/01/18 */
-/*
- * ====================================================
- * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
- *
- * Developed at SunSoft, a Sun Microsystems, Inc. business.
- * Permission to use, copy, modify, and distribute this
- * software is freely granted, provided that this notice 
- * is preserved.
- * ====================================================
- *
- */
-
-#ifndef lint
-static char rcsid[] = "$FreeBSD: src/lib/msun/src/e_acosh.c,v 1.8 2005/02/04 18:26:05 das Exp $";
-#endif
-
-/* __ieee754_acosh(x)
- * Method :
- *	Based on 
- *		acosh(x) = log [ x + sqrt(x*x-1) ]
- *	we have
- *		acosh(x) := log(x)+ln2,	if x is large; else
- *		acosh(x) := log(2x-1/(sqrt(x*x-1)+x)) if x>2; else
- *		acosh(x) := log1p(t+sqrt(2.0*t+t*t)); where t=x-1.
- *
- * Special cases:
- *	acosh(x) is NaN with signal if x<1.
- *	acosh(NaN) is NaN without signal.
- */
-
-#include "math.h"
-#include "math_private.h"
-
-static const double
-one	= 1.0,
-ln2	= 6.93147180559945286227e-01;  /* 0x3FE62E42, 0xFEFA39EF */
-
-double
-__ieee754_acosh(double x)
-{
-	double t;
-	int32_t hx;
-	u_int32_t lx;
-	EXTRACT_WORDS(hx,lx,x);
-	if(hx<0x3ff00000) {		/* x < 1 */
-	    return (x-x)/(x-x);
-	} else if(hx >=0x41b00000) {	/* x > 2**28 */
-	    if(hx >=0x7ff00000) {	/* x is inf of NaN */
-	        return x+x;
-	    } else 
-		return __ieee754_log(x)+ln2;	/* acosh(huge)=log(2x) */
-	} else if(((hx-0x3ff00000)|lx)==0) {
-	    return 0.0;			/* acosh(1) = 0 */
-	} else if (hx > 0x40000000) {	/* 2**28 > x > 2 */
-	    t=x*x;
-	    return __ieee754_log(2.0*x-one/(x+sqrt(t-one)));
-	} else {			/* 1<x<2 */
-	    t = x-one;
-	    return log1p(t+sqrt(2.0*t+t*t));
-	}
-}