Re: Eliminating common factors?

*To*: mathgroup at smc.vnet.net*Subject*: [mg93338] Re: Eliminating common factors?*From*: Steven Siew <stevensiew2 at gmail.com>*Date*: Tue, 4 Nov 2008 06:18:19 -0500 (EST)*References*: <gemjk2$4v5$1@smc.vnet.net>

In[1]:= eq = 4*(a^4 + b^4 c) In[2]:= neweq = Part[ Simplify[eq == 0],1 ] Out[2]:= a^4 + b^4 c Problem solved. On Nov 3, 9:26 pm, AES <sieg... 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?!?!]