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MathGroup Archive 2004

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Re: Problem with Delete

  • To: mathgroup at
  • Subject: [mg51591] Re: [mg51550] Problem with Delete
  • From: Tomas Garza <tgarza01 at>
  • Date: Sat, 23 Oct 2004 00:23:32 -0400 (EDT)
  • References: <>
  • Sender: owner-wri-mathgroup at

Can't reproduce your problem.

a = {{1, 2}, {3, 4}}; 

Delete[a, {1, 1}]
{{2}, {3, 4}}

As expected.

Tomas Garza
Mexico City
----- Original Message ----- 
From: "Gove Effinger" <effinger at>
To: mathgroup at
Subject: [mg51591] [mg51550] Problem with Delete

> Hi. I am a (not heavy) Mathematica user who is running into a problem
> with the Delete function. On occasion (but not always, frustratingly)
> when I have a matrix (list of lists) and ask for deletion of one slot,
> the kernel actually shuts down and I get a message from Microsoft saying
> there is a problem and generating a report. Has anyone run into this and
> know how to get around it?
> Example: a = {{1,2},{3,4}};
> Delete[a,{1,1}]
> This sometimes bombs. In my case, it's after I have multiplied the
> matrix by another matrix, but not before.
> Help,   G. Effinger

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