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MathGroup Archive 2005

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Re: Retaining variable/function expressions from session to session

  • To: mathgroup at smc.vnet.net
  • Subject: [mg63431] Re: [mg63416] Retaining variable/function expressions from session to session
  • From: "David Park" <djmp at earthlink.net>
  • Date: Sat, 31 Dec 2005 06:40:28 -0500 (EST)
  • Sender: owner-wri-mathgroup at wolfram.com

Charles,

I don't see why it is odd that Mathematica forgets assignments at the end of
a session. Otherwise, everytime you started Mathematica it would be filled
with all kinds of definitions you had no use for.

In any case, why not put an Initialization Section at the top of your
notebook and put all of these definitions there. Make them Initialization
cells and when you first save the notebook DON'T create an AutoSave Package.
Then, everytime you open the notebook and start to work in it, these
initialization definitions will automatically be evaluated. If some of them
are the result of long calculations you may want to do the calculation once
and copy the result to a new definition and put that in the Initialization
section.

David Park
djmp at earthlink.net
http://home.earthlink.net/~djmp/

From: Charles Ashley [mailto:cka2 at adelphia.net]
To: mathgroup at smc.vnet.net

Hi,

Is it possible to have variables and functions retain their assigned
expressions from session to session?  I'm working on a problem that
consists of a dozen variables and it seems odd that Mathematica
"forgets" the expression that I've assigned to each variable when I
close out of a session.  To date my solution has just been to "remind"
Mathematica of the assigned expression by reevaluating it each time I
start a new session, but there must be a better way.

Thanks

Charles Ashley

cka2 at adelphia.net



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