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MathGroup Archive 2007

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Re: problem with Dynamic?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg81216] Re: problem with Dynamic?
  • From: David Bailey <dave at Remove_Thisdbailey.co.uk>
  • Date: Sun, 16 Sep 2007 04:03:17 -0400 (EDT)
  • References: <fcg4e5$rk3$1@smc.vnet.net>

Mariusz Jankowski wrote:
> Dear mathgroup,
> 
> Evaluating definite integrals inside Dynamic seems to continue to use 100%
> of CPU time even after the result shows up in the frontend! Other funny
> things happen upon closing/opening the notebook, killing the kernel, etc
> 
> 
> 
> For example, start Windows Task manager and execute the following in a fresh
> notebook:
> 
> 
> 
> Dynamic[Integrate[x, {x,0,1}] ]
> 
> 
> 
> 
> Can anyone explain?
> 
> 
> Thanks, Mariusz
> 
> 
> 
> 
I can confirm this (on Windows XP)! If you try:

Dynamic[Integrate[x a, {x, 0, 1}]]

The output cell will update (correctly, but slowly) if you give 'a' a value.

David Bailey
http://www.dbaileyconsultancy.co.uk


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