Re: signs in the mathematica output

• To: mathgroup at smc.vnet.net
• Subject: [mg92488] Re: signs in the mathematica output
• From: Simone Moriconi <simone.moriconi at eco.unipmn.it>
• Date: Wed, 1 Oct 2008 18:33:41 -0400 (EDT)
• References: <gbulqi\$lcr\$1@smc.vnet.net> <48E2FC19.1040300@gmail.com>

```Thanks a lot for your help!

Simone

Jean-Marc Gulliet ha scritto:
> 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)
>
>
> Out[6]= (a-1) (s-1)
>
> In[7]:= PolynomialForm[%%, TraditionalOrder -> True]
>
> Out[7]= (a-1) (s-1)
>
> HTH,
> -- Jean-Marc

```

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