Why won't MMA simplify parts of expressions?

*To*: mathgroup at yoda.physics.unc.edu*Subject*: Why won't MMA simplify parts of expressions?*From*: alex at fff.chem.utah.edu (Alex Dommasch)*Date*: Thu, 26 Mar 92 11:32:49 MST

I have a simple problem. Look at the following Mathematica output: In[1] := Simplify[a b + a c] Out[1] = a (b + c) In[2] := Simplify[a b + a c + d] Out[2] = a b + a c + d Why won't MMA simplify the (a c + a d) part of the expression? Is there a way to make it do that? Or is it just an inherent limitation in the Factor[] routine? (I'm using MMA version 2.0.) Thanks for any help. -- Alex Dommasch, Programmer |-- Field-Flow Fractionation Research Center |- Department of Chemistry, University of Utah V Salt Lake City, Utah 84112 |->|.. (801)581-7168 FAX: (801)581-4353 |- |. alex at fff.chem.utah.edu (NeXT Mail) | |