1 files changed, 0 insertions, 75 deletions
diff --git a/src/math/e_sinh.c b/src/math/e_sinh.c
deleted file mode 100644
index 3a574274..00000000
--- a/src/math/e_sinh.c
+++ /dev/null
@@ -1,75 +0,0 @@
-
-/* @(#)e_sinh.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.
- * ====================================================
- */
-
-/* sinh(x)
- * Method : 
- * mathematically sinh(x) if defined to be (exp(x)-exp(-x))/2
- *      1. Replace x by |x| (sinh(-x) = -sinh(x)). 
- *      2. 
- *                                                  E + E/(E+1)
- *          0        <= x <= 22     :  sinh(x) := --------------, E=expm1(x)
- *                                                      2
- *
- *          22       <= x <= lnovft :  sinh(x) := exp(x)/2 
- *          lnovft   <= x <= ln2ovft:  sinh(x) := exp(x/2)/2 * exp(x/2)
- *          ln2ovft  <  x           :  sinh(x) := x*shuge (overflow)
- *
- * Special cases:
- *      sinh(x) is |x| if x is +INF, -INF, or NaN.
- *      only sinh(0)=0 is exact for finite x.
- */
-
-#include <math.h>
-#include "math_private.h"
-
-static const double one = 1.0, shuge = 1.0e307;
-
-double
-sinh(double x)
-{
-        double t,w,h;
-        int32_t ix,jx;
-        uint32_t lx;
-
-    /* High word of |x|. */
-        GET_HIGH_WORD(jx,x);
-        ix = jx&0x7fffffff;
-
-    /* x is INF or NaN */
-        if(ix>=0x7ff00000) return x+x;  
-
-        h = 0.5;
-        if (jx<0) h = -h;
-    /* |x| in [0,22], return sign(x)*0.5*(E+E/(E+1))) */
-        if (ix < 0x40360000) {          /* |x|<22 */
-            if (ix<0x3e300000)          /* |x|<2**-28 */
-                if(shuge+x>one) return x;/* sinh(tiny) = tiny with inexact */
-            t = expm1(fabs(x));
-            if(ix<0x3ff00000) return h*(2.0*t-t*t/(t+one));
-            return h*(t+t/(t+one));
-        }
-
-    /* |x| in [22, log(maxdouble)] return 0.5*exp(|x|) */
-        if (ix < 0x40862E42)  return h*exp(fabs(x));
-
-    /* |x| in [log(maxdouble), overflowthresold] */
-        GET_LOW_WORD(lx,x);
-        if (ix<0x408633CE || ((ix==0x408633ce)&&(lx<=(uint32_t)0x8fb9f87d))) {
-            w = exp(0.5*fabs(x));
-            t = h*w;
-            return t*w;
-        }
-
-    /* |x| > overflowthresold, sinh(x) overflow */
-        return x*shuge;
-}