Re: RE: ExpandAll Problem with Rules
- To: mathgroup at smc.vnet.net
- Subject: [mg50457] Re: RE: [mg50431] ExpandAll Problem with Rules
- From: Bob Hanlon <hanlonr at cox.net>
- Date: Sat, 4 Sep 2004 01:43:47 -0400 (EDT)
- Reply-to: hanlonr at cox.net
- Sender: owner-wri-mathgroup at wolfram.com
Must be version/OS related. With the overall paren it works fine on v5.0.1.0 with Mac OS X. Bob Hanlon > > From: "David Park" <djmp at earthlink.net> To: mathgroup at smc.vnet.net > Date: 2004/09/03 Fri PM 12:49:04 EDT > To: <hanlonr at cox.net>, > <mathgroup at smc.vnet.net> > Subject: [mg50457] RE: [mg50431] ExpandAll Problem with Rules > > (a(b + c) -> d(e + f)) // ExpandAll > > still gives the error message. It is the use of ExpandAll on Rules that is > the problem. > > David Park > djmp at earthlink.net > http://home.earthlink.net/~djmp/ > > From: Bob Hanlon [mailto:hanlonr at cox.net] To: mathgroup at smc.vnet.net > > Put parentheses around the argument to ExpandAll > > (a(b+c)==d(e+f)) // ExpandAll > > or use > > ExpandAll[a(b+c)==d(e+f)] > > > Bob Hanlon > > > > > From: "David Park" <djmp at earthlink.net> To: mathgroup at smc.vnet.net > > Date: 2004/09/03 Fri AM 03:35:30 EDT > > To: mathgroup at smc.vnet.net > > Subject: [mg50457] [mg50431] ExpandAll Problem with Rules > > > > The ExpandAll Help says... > > > > ExpandAll[expr] expands out all products and integer powers in any part of > expr. > > > > The following works... > > > > a(b + c) == d(e + f) // ExpandAll > > > > a b + a c == d e + d f > > > > The following appears to work, but gives a strange error message. > > > > a(b + c) -> d(e + f) // ExpandAll > > > > General::argt: ExpandAll called with 0 arguments; 1 or 2 arguments are \ > > expected > > > > a b + a c -> d e + d f > > > > David Park > > djmp at earthlink.net > > http://home.earthlink.net/~djmp/ > > > > > > > > > > > > > Bob Hanlon Chantilly, VA