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Re: Re: Mathematica 3.0 & MathReader 4.0

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  • Subject: [mg25209] Re: [mg25192] Re: Mathematica 3.0 & MathReader 4.0
  • From: Andrzej Kozlowski <andrzej at>
  • Date: Fri, 15 Sep 2000 02:21:45 -0400 (EDT)
  • Sender: owner-wri-mathgroup at

I have not got MathReader here to test this, but I believe that the problem
is that both Mathematica and MathReader use the same file signature, OMEG. I
think you can probably solve this problem as follows. Use any one of the
many utilities which let you change the attributes of a file (type, creator,
etc) to change the creator ("file signature") of MathReader from OMEG to
something else (e.g. GEMO).  (For example I use the shareware program Snitch
but there are countless others, including both freeware and shareware).
MathReader will then loose its icon and assume a generic application icon,
but will continue working as normal. However, all files with a Mathematica
icon (signature OMEG) will now open, when double-clicked, in Mathematica.

on 00.9.13 10:24 AM, AES at siegman at wrote:

>> The only thing you have to work around is file associations for
>> notebooks.  
>> Once Mathreader is installed, you may find that double-clicking on a
>> notebook's icon will result in it being loaded in MathReader.  Check your
>> operating system documentation for information on how to adjust file
>> associations.
> Paul,
> As you know, I've bumped up against this problem, and haven't, yet,
> found the solution for the Mac case, though several people responded on
> the the Windows solution.
> In fact, as a test I just opened a notebook in Mathematica 4.0 (by
> dragging the notebook on top of a Mathematica 4.0 alias);  then did not
> merely a SAVE, but a SAVE AS on the notebook from Mathematica 4.0; and
> then double-clicked on the SAVED AS notebook.
> Result:  the notebook opened in MathReader 4.0, not Mathematica 4.0.
> That's NOT supposed to happen, and I think indicates that Mathematica has
> somehow messed up the standard actions of the Mac OS.
> --AES

Andrzej Kozlowski
Toyama International University

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