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Re: Difference between two commands.

• To: mathgroup at smc.vnet.net
• Subject: [mg90494] Re: Difference between two commands.
• From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
• Date: Thu, 10 Jul 2008 07:32:28 -0400 (EDT)
• Organization: Uni Leipzig
• References: <g54ole$f0m$1@smc.vnet.net>
• Reply-to: kuska at informatik.uni-leipzig.de

Hi,

Get[] or << load the package every time it is executed and
it must not be a true package with a package context, it can any
sequence of Mathematica commands.

Needs[] load the package only when it is not already loaded and
should emit a warning when the package create no new context.

Regards
   Jens

Budaoy wrote:
> 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?
>