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MathGroup Archive 2004

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Re: Simple Question [Clearing Variables]

  • To: mathgroup at smc.vnet.net
  • Subject: [mg46537] Re: Simple Question [Clearing Variables]
  • From: "Timothy C. Klein" <teece at silverklein.net>
  • Date: Sun, 22 Feb 2004 11:27:38 -0500 (EST)
  • References: <c16lp1$5ng$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Ashok. R wrote:

> Hello all,
> 
> I have a simple question. I want to know what command to use in order to
> clear all the variables that I have defined in the notebook. I do not want
> to clear them one by one.
> 
> I treid Remove[All], but that removes the internal variables as well.
> 
> Such a simple issue, but I cannot find the answer using the online doc.
> 
> Merci

You might try:

Clear["@"]

To clear all lowercase, user-defined variables.

or

Clear["Global`*"]

To clear all user-defined variables.

Obviously, this won't work if you define your variabes somewhere other than
the Global context.  I also rarely use it -- I had to look it up.  It was a
trick mentioned in Marvin L. DeJong's "Mathematica for Calculus-Based
Physics."

It does seem to do the trick.

Tim
--
==============================================
== Timothy Klein || teece at silverklein.net   ==
==  Vanity Page: http://tinyurl.com/vkhp    ==
== ---------------------------------------- ==
== Hello_World.c: 17 Errors, 31 Warnings... ==
==============================================


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