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Re: Eric weisstein's MathWorld packages

I just tried this with freshly-downloaded copies of the version of the 
Utilities packages from MathWorld and had no difficulty.

You don't say which version of Mathematica or the Utilities you're 
using.  I'm using the current version of Mathematica and the 6.0 version 
of Utilities.

I unzipped to:

   StringJoin[ToFileName[$UserAddOnsDirectory], "Utilities"]

so that, for example, Plot.m is in that Utilities directory.

No trouble here doing:


Did you, by mistake, unzip the files to either of the following?

   StringJoin[ToFileName[$UserAddOnsDirectory], "MathWorld"]
   StringJoin[ToFileName[$UserAddOnsDirectory], "MathWorld/Utilities"]

I don't think eeither of those will work.

And I was able to test a couple of functions from the Plot utilities 
called by other packages downloaded from MathWorld. Note, though, that 
there are some incompatibilities or unpleasantness of some of the 
individual example packages you can download from MathWorld and the use 
of the utilities as called. And even using the automatic Mathematica 
scan of those old notebooks and allowing it to fix them doesn't cure all 
the problems.  For example, GraphicsArray seems to be embedded within 
some Utilities`Plot` functions, whereas Mathematica 7 wants you to use 
GraphicsGrid (or GraphicsRow or GraphicsColumn).  And there are deeper 
issues as well.

On 5/28/2010 7:22 AM, a wrote:
> I am having a lot of diffculty in installing/using these packages
> (MathWorldPackages, Utilities) which are necessary to use the large
> majority of the files in the Mathworld website.
> I have placed both these directories in the appropriate place on the
> path but trying to load the packages<<  Utiltities`Plot` i
> getGet::noopen: fail.
> Manually loading the packages and running them also seems unstable/
> unworkable.
> I would appreciate any suggestions, I have been trying to resolve this
> issue for over a year now
> Regards,
> Arthur

Murray Eisenberg                     murray at
Mathematics & Statistics Dept.
Lederle Graduate Research Tower      phone 413 549-1020 (H)
University of Massachusetts                413 545-2859 (W)
710 North Pleasant Street            fax   413 545-1801
Amherst, MA 01003-9305

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