===================================================================
RCS file: /home/cvs/OpenXM_contrib2/asir2000/builtin/rat.c,v
retrieving revision 1.1.1.1
retrieving revision 1.5
diff -u -p -r1.1.1.1 -r1.5
--- OpenXM_contrib2/asir2000/builtin/rat.c	1999/12/03 07:39:07	1.1.1.1
+++ OpenXM_contrib2/asir2000/builtin/rat.c	2013/02/15 07:05:49	1.5
@@ -1,13 +1,63 @@
-/* $OpenXM: OpenXM/src/asir99/builtin/rat.c,v 1.1.1.1 1999/11/10 08:12:26 noro Exp $ */
+/*
+ * Copyright (c) 1994-2000 FUJITSU LABORATORIES LIMITED 
+ * All rights reserved.
+ * 
+ * FUJITSU LABORATORIES LIMITED ("FLL") hereby grants you a limited,
+ * non-exclusive and royalty-free license to use, copy, modify and
+ * redistribute, solely for non-commercial and non-profit purposes, the
+ * computer program, "Risa/Asir" ("SOFTWARE"), subject to the terms and
+ * conditions of this Agreement. For the avoidance of doubt, you acquire
+ * only a limited right to use the SOFTWARE hereunder, and FLL or any
+ * third party developer retains all rights, including but not limited to
+ * copyrights, in and to the SOFTWARE.
+ * 
+ * (1) FLL does not grant you a license in any way for commercial
+ * purposes. You may use the SOFTWARE only for non-commercial and
+ * non-profit purposes only, such as academic, research and internal
+ * business use.
+ * (2) The SOFTWARE is protected by the Copyright Law of Japan and
+ * international copyright treaties. If you make copies of the SOFTWARE,
+ * with or without modification, as permitted hereunder, you shall affix
+ * to all such copies of the SOFTWARE the above copyright notice.
+ * (3) An explicit reference to this SOFTWARE and its copyright owner
+ * shall be made on your publication or presentation in any form of the
+ * results obtained by use of the SOFTWARE.
+ * (4) In the event that you modify the SOFTWARE, you shall notify FLL by
+ * e-mail at risa-admin@sec.flab.fujitsu.co.jp of the detailed specification
+ * for such modification or the source code of the modified part of the
+ * SOFTWARE.
+ * 
+ * THE SOFTWARE IS PROVIDED AS IS WITHOUT ANY WARRANTY OF ANY KIND. FLL
+ * MAKES ABSOLUTELY NO WARRANTIES, EXPRESSED, IMPLIED OR STATUTORY, AND
+ * EXPRESSLY DISCLAIMS ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT OF THIRD PARTIES'
+ * RIGHTS. NO FLL DEALER, AGENT, EMPLOYEES IS AUTHORIZED TO MAKE ANY
+ * MODIFICATIONS, EXTENSIONS, OR ADDITIONS TO THIS WARRANTY.
+ * UNDER NO CIRCUMSTANCES AND UNDER NO LEGAL THEORY, TORT, CONTRACT,
+ * OR OTHERWISE, SHALL FLL BE LIABLE TO YOU OR ANY OTHER PERSON FOR ANY
+ * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, PUNITIVE OR CONSEQUENTIAL
+ * DAMAGES OF ANY CHARACTER, INCLUDING, WITHOUT LIMITATION, DAMAGES
+ * ARISING OUT OF OR RELATING TO THE SOFTWARE OR THIS AGREEMENT, DAMAGES
+ * FOR LOSS OF GOODWILL, WORK STOPPAGE, OR LOSS OF DATA, OR FOR ANY
+ * DAMAGES, EVEN IF FLL SHALL HAVE BEEN INFORMED OF THE POSSIBILITY OF
+ * SUCH DAMAGES, OR FOR ANY CLAIM BY ANY OTHER PARTY. EVEN IF A PART
+ * OF THE SOFTWARE HAS BEEN DEVELOPED BY A THIRD PARTY, THE THIRD PARTY
+ * DEVELOPER SHALL HAVE NO LIABILITY IN CONNECTION WITH THE USE,
+ * PERFORMANCE OR NON-PERFORMANCE OF THE SOFTWARE.
+ *
+ * $OpenXM: OpenXM_contrib2/asir2000/builtin/rat.c,v 1.4 2003/12/23 10:39:57 ohara Exp $ 
+*/
 #include "ca.h"
 #include "parse.h"
 
-void Pnm(), Pdn(), Pderiv();
+void Pnm(), Pdn(), Pderiv(), Pederiv(), Prderiv();
 
 struct ftab rat_tab[] = {
 	{"nm",Pnm,1},
 	{"dn",Pdn,1},
 	{"diff",Pderiv,-99999999},
+	{"ediff",Pederiv,-99999999},
+	{"rdiff",Prderiv,-99999999},
 	{0,0,0},
 };
 
@@ -94,6 +144,58 @@ Obj *rp;
 		if ( !(v = (P)BDY(n)) || OID(v) != O_P )
 			error("diff : invalid argument");
 		derivr(CO,a,VR(v),&t); a = t;
+	}
+	*rp = a;
+}
+
+/* simple derivation with reduction */
+void Prderiv(arg,rp)
+NODE arg;
+Obj *rp;
+{
+	Obj a,t;
+	LIST l;
+	P v;
+	NODE n;
+
+	if ( !arg ) {
+		*rp = 0; return;
+	}
+	asir_assert(ARG0(arg),O_R,"rdiff");
+	a = (Obj)ARG0(arg);
+	n = NEXT(arg);
+	if ( n && (l = (LIST)ARG0(n)) && OID(l) == O_LIST )
+		n = BDY(l);
+	for ( ; n; n = NEXT(n) ) {
+		if ( !(v = (P)BDY(n)) || OID(v) != O_P )
+			error("rdiff : invalid argument");
+		simple_derivr(CO,a,VR(v),&t); a = t;
+	}
+	*rp = a;
+}
+
+/* Euler derivation */
+void Pederiv(arg,rp)
+NODE arg;
+Obj *rp;
+{
+	Obj a,t;
+	LIST l;
+	P v;
+	NODE n;
+
+	if ( !arg ) {
+		*rp = 0; return;
+	}
+	asir_assert(ARG0(arg),O_P,"ediff");
+	reductr(CO,(Obj)ARG0(arg),&a);
+	n = NEXT(arg);
+	if ( n && (l = (LIST)ARG0(n)) && OID(l) == O_LIST )
+		n = BDY(l);
+	for ( ; n; n = NEXT(n) ) {
+		if ( !(v = (P)BDY(n)) || OID(v) != O_P )
+			error("diff : invalid argument");
+		ediffp(CO,a,VR(v),&t); a = t;
 	}
 	*rp = a;
 }