Simplify doesn't factor out 16 :-(
- To: mathgroup at smc.vnet.net
- Subject: [mg43586] Simplify doesn't factor out 16 :-(
- From: Pavel Pokorny <Pavel.Pokorny at vscht.cz>
- Date: Mon, 22 Sep 2003 03:14:10 -0400 (EDT)
- Organization: Czech Technical University
- Sender: owner-wri-mathgroup at wolfram.com
Dear Mathematica friends
I can't understand why Simplify in Mathematica 5.0 doesn't factor out 16
in this expression
In[1]:= Simplify[-4*(16 + 4*L^2*(-1 + 3*u^2))]
2 2
Out[1]= -4 (16 + 4 L (-1 + 3 u ))
only after using Expand
In[2]:= Expand[%]//Simplify
2 2
Out[2]= 16 (-4 + L (1 - 3 u ))
Is it a bug or an intention?
Pavel Pokorny