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MathGroup Archive 2007

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RE: How do you set up third party (or your own) packages?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg79670] RE: [mg79607] How do you set up third party (or your own) packages?
  • From: "David Annetts" <davidannetts at aapt.net.au>
  • Date: Wed, 1 Aug 2007 05:09:43 -0400 (EDT)
  • References: <200707311005.GAA19726@smc.vnet.net>

Hi Daniel,

> I am asking this question in all humility on the theory that 
> there is no stupid question in this forum. My apologies if 
> this is not the case:
> How do I use third party packages, or my own for that matter? 
> For a specific case, I have downloaded some files from 
> mathworld.wolfram.com and the set of version 6 
> MathWorldPackages. I want to load PlaneGeometry.m which in 
> turn has a dependency on KimberlingCoordinates.m. In my 
> effort to successfully execute the line:
> 
> << MathWorld`PlaneGeometry
> 
> I have tried putting selected packages in 
> ~/Libraries/Mathematica/Applications. I have tried modifying 
> $Path using
> 
> AppendTo[$Path, =E2=80=A8 ToFileName[{$HomeDirectory, "Documents",
> "MathematicaFiles", "MathWorld", =E2=80=A8   "MathWorldPackages"}]]
> 
> Neither solution works. The only thing that has proven to 
> work is using Get[] with the full path name to the file, but 
> this isn't the standard approach. What doesn't seem to be 
> working for me is adding the appropriate path to the list of 
> search paths Mathematica uses, presumably $Path.

When I follow the instructions at
http://library.wolfram.com/infocenter/MathSource/4775, and extract the
packages to 
ToFileName[{$TopDirectory, "AddOns", "ExtraPackages", "MathWorld"}], things
work fine.  

Works fine if I don't follow instructions exactly and put it in
ToFileName[{$UserBaseDirectory, "AddOns", "ExtraPackages", "MathWorld"}]
too.

As long as the files in the package reside in a directory called "MathWorld"
that lies off any of the directories in your $Path, you should be fine.
Near as I can tell from your question, you don't have this since
"~/Libraries/Mathematica/Applications" _may_ (I don't use a UNIX system) not
be in your path, and AppendTo[$Path, =E2=80=A8 ToFileName[{$HomeDirectory,
"Documents",
> "MathematicaFiles", "MathWorld", =E2=80=A8   "MathWorldPackages"}]] adds
the wrong directory.

Regards,

Dave.


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