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Re: Re: Compatibility woes

  • To: mathgroup at
  • Subject: [mg76092] Re: [mg76044] Re: [mg75986] Compatibility woes
  • From: Murray Eisenberg <murray at>
  • Date: Wed, 16 May 2007 05:27:22 -0400 (EDT)
  • Organization: Mathematics & Statistics, Univ. of Mass./Amherst
  • References: <845718.1179133087873.JavaMail.root@m35> <>
  • Reply-to: murray at

In 6.0, you don't seem to need to load any package to use ToPackedArray.

DrMajorBob wrote:
> ToPackedArray is available after:
> << Developer`
> We're supposed to get the hint from the top-of-the-page heading that says  
> "Developer Package Symbol".
> Hopefully that works for EVERYTHING in help, if a Get or Needs statement  
> isn't shown?
> Bobby
> On Mon, 14 May 2007 02:49:02 -0500, Mark Adler <madler at>  
> wrote:
>> I have been using Mathematica since 1.0.  For every new version or
>> update, my previous notebooks have all worked without modification.
>> Not so with Version 6.
>> Of course, the first clue is that Mathematica offers to fix my old
>> notebooks when I load them the first time.  Get rid of semicolons
>> after Plot[] and Show[], change Random[] to the new versions, that
>> sort of thing.  That's all somewhat annoying, but I suppose tolerable.
>> Then it complains about old packages that, it says, will mess up the
>> new graphics or other functions.  So it complains about loading, for
>> example, Graphics`Colors`.  If I don't load it, I no longer have
>> DeepSkyBlue, or PaleGreen used as plot line colors.  If I do load it,
>> I am allegedly at risk that something else will be screwed up.
>> It can't find Developer`, so how do I get ToPackedArray[]?
>> All in all, I am disturbed that after loading only a few notebooks,
>> I've run into so many incompatibilities.  I fear that I've only
>> scratched the surface, and many more are laying in wait.
>> What is the justification for this sudden and flagrant disregard for
>> backward compatibility?
>> Yes, I'm having fun playing with Manipulate[], but I'm wondering if I
>> made a mistake to download the new version.
>> Mark Adler

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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