Re: Eliminating common factors?
- To: mathgroup at smc.vnet.net
- Subject: [mg93328] Re: [mg93299] Eliminating common factors?
- From: Bob Hanlon <hanlonr at cox.net>
- Date: Tue, 4 Nov 2008 06:16:28 -0500 (EST)
- Reply-to: hanlonr at cox.net
In the simple form provided, just about any command that touches it will work. Without the actual expression there is no way to help.
expr = 4 (a/4 + b/(4 c))
4*(a/4 + b/(4*c))
expr // Simplify
a + b/c
expr // Apart
a + b/c
expr // Expand
a + b/c
expr // ExpandAll
a + b/c
expr // Cancel // Apart
a + b/c
expr // Together // Apart
a + b/c
expr // Factor // Apart
a + b/c
Bob Hanlon
---- AES <siegman at stanford.edu> wrote:
=============
I have a simple, totally algebraic symbolic calculation that displays
its output in the form (rewritten here using TeX notation)
4 ( {a \over 4 } + { b \over 4 c } )
where a, b and c are fairly simple products of purely algebraic
quantities; \over is the TeX notation for a display fraction; and the
curly brackets are just for TeX purposes and are not there in the actual
output.
Is there any Assumption for Simplify, or any other _simple_ way, to get
rid of those (utterly!!!) superfluous 4's?
[I suppose the real question is, why doesn't M cancel 'em the hell out
in the first place?!?!]
--
Bob Hanlon