Re: signs in the mathematica output
- To: mathgroup at smc.vnet.net
- Subject: [mg92477] Re: signs in the mathematica output
- From: Jean-Marc Gulliet <jeanmarc.gulliet at gmail.com>
- Date: Wed, 1 Oct 2008 18:31:26 -0400 (EDT)
- Organization: The Open University, Milton Keynes, UK
- References: <gbulqi$lcr$1@smc.vnet.net>
Simone Moriconi wrote: > Hello everybody! I have a problem in using the Mathematica Package which is probably a bit stupid but very annoying when you have long expressions.. > > When I "FullSimplify" big equations, in the output the negative sign is always put aside i.e. if I do something like: > > FullSimplify[(1-s)(1-a)] > > I obtain > > (-1+s)(-1+a). > > Which is very confusing with long and tedius expressions. Does anybody know a way to solve this problem? You could use *TraditionalForm* or *PolynomialForm[_, TraditionalOrder -> True]* as follows: In[5]:= Simplify[(1 - s) (1 - a)] Out[5]= (-1 + a) (-1 + s) In[6]:= % // TraditionalForm Out[6]= (a-1) (s-1) In[7]:= PolynomialForm[%%, TraditionalOrder -> True] Out[7]= (a-1) (s-1) HTH, -- Jean-Marc