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MathGroup Archive 2005

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Re: Viewing algebraic results

  • To: mathgroup at smc.vnet.net
  • Subject: [mg57714] Re: Viewing algebraic results
  • From: David Bailey <dave at Remove_Thisdbailey.co.uk>
  • Date: Mon, 6 Jun 2005 04:21:23 -0400 (EDT)
  • References: <d7ucu5$srr$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Milind Gupta wrote:
> Hello,
>  Is there a way to view the algebraic formulae for any variable defined
> previously even if the variables in the formulae have been assigned a
> numerical value?
> 
> Milind
> 
> 
Hello,

Your question is a bit vague, but I will try to answer it.

In general, I advise people not to make assignments to simple algebraic 
variables except inside Module (and similar) constructs. Suppose you 
have something like:

myQuadratic=x^2+2x+3;

You could give x a numeric value and then myQuadratic would become a 
number and you would have lost any other information about it. 
Alternatively, you could make a substitution for x:

myQuadratic /. x->7.4

Working that way you don't lose any information. If this does not help, 
I suggest you post a again with some actual examples of what you are doing.

David Bailey
http://www.dbaileyconsultancy.co.uk


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