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Begginer's question: Saving a function for later use

• To: mathgroup at smc.vnet.net
• Subject: [mg128037] Begginer's question: Saving a function for later use
• From: pedro.roberto at campus.ul.pt
• Date: Mon, 10 Sep 2012 04:05:40 -0400 (EDT)
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Hello,
I'm just getting started on Mathematica and trying to define a function for later use. The function is just:

test[x_]:=x^2

While I don't close mathematica, I can use the function on my notebooks but when I close it, the function disappers, I tried to save a .m file with it but It didn't work. What do I do?

Thanks for time,
Pedro

• Follow-Ups:
  • Re: Begginer's question: Saving a function for later use
    • From: Rodrigo AP <digorna@gmail.com>
  • Re: Begginer's question: Saving a function for later use
    • From: Murray Eisenberg <murray@math.umass.edu>
  • Re: Begginer's question: Saving a function for later use
    • From: Joug Raw <jougraw@gmail.com>