summaryrefslogtreecommitdiff
path: root/math/w_jnl.c
diff options
context:
space:
mode:
Diffstat (limited to 'math/w_jnl.c')
-rw-r--r--math/w_jnl.c98
1 files changed, 0 insertions, 98 deletions
diff --git a/math/w_jnl.c b/math/w_jnl.c
deleted file mode 100644
index 4bb4d6b620..0000000000
--- a/math/w_jnl.c
+++ /dev/null
@@ -1,98 +0,0 @@
-/* w_jnl.c -- long double version of w_jn.c.
- * Conversion to long double by Ulrich Drepper,
- * Cygnus Support, drepper@cygnus.com.
- */
-
-/*
- * ====================================================
- * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
- *
- * Developed at SunPro, a Sun Microsystems, Inc. business.
- * Permission to use, copy, modify, and distribute this
- * software is freely granted, provided that this notice
- * is preserved.
- * ====================================================
- */
-
-#if defined(LIBM_SCCS) && !defined(lint)
-static char rcsid[] = "$NetBSD: $";
-#endif
-
-/*
- * wrapper jn(int n, double x), yn(int n, double x)
- * floating point Bessel's function of the 1st and 2nd kind
- * of order n
- *
- * Special cases:
- * y0(0)=y1(0)=yn(n,0) = -inf with division by zero signal;
- * y0(-ve)=y1(-ve)=yn(n,-ve) are NaN with invalid signal.
- * Note 2. About jn(n,x), yn(n,x)
- * For n=0, j0(x) is called,
- * for n=1, j1(x) is called,
- * for n<x, forward recursion us used starting
- * from values of j0(x) and j1(x).
- * for n>x, a continued fraction approximation to
- * j(n,x)/j(n-1,x) is evaluated and then backward
- * recursion is used starting from a supposed value
- * for j(n,x). The resulting value of j(0,x) is
- * compared with the actual value to correct the
- * supposed value of j(n,x).
- *
- * yn(n,x) is similar in all respects, except
- * that forward recursion is used for all
- * values of n>1.
- *
- */
-
-#include <math.h>
-#include "math_private.h"
-
-#ifdef __STDC__
- long double __jnl(int n, long double x) /* wrapper jnl */
-#else
- long double __jnl(n,x) /* wrapper jnl */
- long double x; int n;
-#endif
-{
-#ifdef _IEEE_LIBM
- return __ieee754_jnl(n,x);
-#else
- long double z;
- z = __ieee754_jnl(n,x);
- if(_LIB_VERSION == _IEEE_ || __isnanl(x) ) return z;
- if(fabsl(x)>X_TLOSS) {
- return __kernel_standard((double)n,x,238); /* jn(|x|>X_TLOSS,n) */
- } else
- return z;
-#endif
-}
-weak_alias (__jnl, jnl)
-
-#ifdef __STDC__
- long double __ynl(int n, long double x) /* wrapper ynl */
-#else
- long double __ynl(n,x) /* wrapper ynl */
- long double x; int n;
-#endif
-{
-#ifdef _IEEE_LIBM
- return __ieee754_ynl(n,x);
-#else
- long double z;
- z = __ieee754_ynl(n,x);
- if(_LIB_VERSION == _IEEE_ || __isnanl(x) ) return z;
- if(x <= 0.0){
- if(x==0.0)
- /* d= -one/(x-x); */
- return __kernel_standard((double)n,x,212);
- else
- /* d = zero/(x-x); */
- return __kernel_standard((double)n,x,213);
- }
- if(x>X_TLOSS) {
- return __kernel_standard((double)n,x,239); /* yn(x>X_TLOSS,n) */
- } else
- return z;
-#endif
-}
-weak_alias (__ynl, ynl)