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Re: Simplifying algebraic expressions
- To: mathgroup at smc.vnet.net
- Subject: [mg66877] Re: Simplifying algebraic expressions
- From: Bill Rowe <readnewsciv at earthlink.net>
- Date: Fri, 2 Jun 2006 04:09:04 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
On 6/1/06 at 6:54 AM, aroy at cs.bc.edu (Amitabha Roy) wrote: >I would like Mathematica to be able to take an expression, say, >(-1)^{2 x + 3 y} and be able to simplify to (-1)^y. >Is there a way one can do this ? I wonder if you really meant (-1)^{2 x + 3 y} instead of (-1)^(2 x + 3 y) in any case, the only way to simplify the 2 x + 3 y part to y would be to define x as -y. That is (-1)^(2 x + 3 y)/.x->-y will return (-1)^y Or perhaps you wanted Mathematica to return (-1)^z where z is defined to be 2 x + 3 y? If so (-1)^(2 x + 3 y) /. (-1)^(n_) :> (-1)^z will return (-1)^z -- To reply via email subtract one hundred and four
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- Re: Re: Simplifying algebraic expressions
- From: Murray Eisenberg <murray@math.umass.edu>