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Re: Difference between two commands.

  • To: mathgroup at smc.vnet.net
  • Subject: [mg90486] Re: Difference between two commands.
  • From: Peter Breitfeld <phbrf at t-online.de>
  • Date: Thu, 10 Jul 2008 07:07:18 -0400 (EDT)
  • References: <g54ole$f0m$1@smc.vnet.net>

Budaoy schrieb:
> What's the difference between these two commands: << and Needs?
> Sometimes we use <<Graphics` and sometimes we use
> Needs["ComputerArithmetic`"]. Where do they distinguish from each
> other?
>

<< Package` always loads the package, whereas Needs first looks if
the packages isn't already loaded and only then reads in the package. 

Gruss Peter
-- 
==-==-==-==-==-==-==-==-==-==-==-==-==-==-==-==-==-==-==-==-==-==
Peter Breitfeld, Bad Saulgau, Germany -- http://www.pBreitfeld.de


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