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