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authorAaron Spike <aaron@ekips.org>2006-04-12 13:20:54 +0000
committeracspike <acspike@users.sourceforge.net>2006-04-12 13:20:54 +0000
commitddfaffe08d23e4663fe759d67ae33fd67fc9ce5b (patch)
tree234f5425a7ef7058e69dc2ab77f89810e4f3ed91 /src/dom/js/fdlibm/w_jn.c
parentfix 1466070 (diff)
downloadinkscape-ddfaffe08d23e4663fe759d67ae33fd67fc9ce5b.tar.gz
inkscape-ddfaffe08d23e4663fe759d67ae33fd67fc9ce5b.zip
Removed file/folder for ishmal
(bzr r478)
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diff --git a/src/dom/js/fdlibm/w_jn.c b/src/dom/js/fdlibm/w_jn.c
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-/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
- *
- * ***** BEGIN LICENSE BLOCK *****
- * Version: MPL 1.1/GPL 2.0/LGPL 2.1
- *
- * The contents of this file are subject to the Mozilla Public License Version
- * 1.1 (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- * http://www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
- * for the specific language governing rights and limitations under the
- * License.
- *
- * The Original Code is Mozilla Communicator client code, released
- * March 31, 1998.
- *
- * The Initial Developer of the Original Code is
- * Sun Microsystems, Inc.
- * Portions created by the Initial Developer are Copyright (C) 1998
- * the Initial Developer. All Rights Reserved.
- *
- * Contributor(s):
- *
- * Alternatively, the contents of this file may be used under the terms of
- * either of the GNU General Public License Version 2 or later (the "GPL"),
- * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
- * in which case the provisions of the GPL or the LGPL are applicable instead
- * of those above. If you wish to allow use of your version of this file only
- * under the terms of either the GPL or the LGPL, and not to allow others to
- * use your version of this file under the terms of the MPL, indicate your
- * decision by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL or the LGPL. If you do not delete
- * the provisions above, a recipient may use your version of this file under
- * the terms of any one of the MPL, the GPL or the LGPL.
- *
- * ***** END LICENSE BLOCK ***** */
-
-/* @(#)w_jn.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.
- * ====================================================
- */
-
-/*
- * 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 "fdlibm.h"
-
-#ifdef __STDC__
- double fd_jn(int n, double x) /* wrapper jn */
-#else
- double fd_jn(n,x) /* wrapper jn */
- double x; int n;
-#endif
-{
-#ifdef _IEEE_LIBM
- return __ieee754_jn(n,x);
-#else
- double z;
- z = __ieee754_jn(n,x);
- if(_LIB_VERSION == _IEEE_ || fd_isnan(x) ) return z;
- if(fd_fabs(x)>X_TLOSS) {
- int err;
- return __kernel_standard((double)n,x,38,&err); /* jn(|x|>X_TLOSS,n) */
- } else
- return z;
-#endif
-}
-
-#ifdef __STDC__
- double yn(int n, double x) /* wrapper yn */
-#else
- double yn(n,x) /* wrapper yn */
- double x; int n;
-#endif
-{
-#ifdef _IEEE_LIBM
- return __ieee754_yn(n,x);
-#else
- double z;
- int err;
- z = __ieee754_yn(n,x);
- if(_LIB_VERSION == _IEEE_ || fd_isnan(x) ) return z;
- if(x <= 0.0){
- if(x==0.0)
- /* d= -one/(x-x); */
- return __kernel_standard((double)n,x,12,&err);
- else
- /* d = zero/(x-x); */
- return __kernel_standard((double)n,x,13,&err);
- }
- if(x>X_TLOSS) {
- return __kernel_standard((double)n,x,39,&err); /* yn(x>X_TLOSS,n) */
- } else
- return z;
-#endif
-}