Q: ReplaceAll with pattern in pattern
- To: mathgroup at smc.vnet.net
- Subject: [mg18459] Q: ReplaceAll with pattern in pattern
- From: handel at hrzpub.tu-darmstadt.de (Christoph)
- Date: Wed, 7 Jul 1999 00:11:39 -0400
- Organization: -
- Sender: owner-wri-mathgroup at wolfram.com
howdy,
At the top of a notebook i want to define some constants like that:
shorts={a -> b^2,d -> a/f}
values={b -> 42,f -> 27}
and now i want to do some calculations using a,b,d,f as symbols:
matrix={{a,b},{d,f}}
and now I need to show the matrix:
matrix //MatrixForm
and now I want to know numerical values.
matrix /.shorts /. values
but this won't do the job. When the shorts are done, there are still
some a left, because they were introduced with the second replacement
rule. Is there any way to do things like that?
Greetings
Christoph
PS: Mathematica 3.0 on NT
PPS: please also use eMail to reply