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Bug in Plot?

• To: mathgroup at smc.vnet.net
• Subject: [mg88626] Bug in Plot?
• From: John Stone <stn at u.washington.edu>
• Date: Sat, 10 May 2008 06:52:39 -0400 (EDT)
• Organization: University of Washington

I recently upgraded to v 6.0.2.  A plotting program I wrote years ago 
which has worked on many previous versions suddenly broke.  I seem to 
have isolated the following problem:

For me, this command produces a simple plot:

a = 0.25; Plot[1 - Exp[-a * t], {t, 0, 10}]

As does this:

a = 0.25; Plot[1 - Exp[-a * t], {t, 0.5, 10}]

As does this:

a = 0.0025; Plot[1 - Exp[-a * t], {t, 0, 1000}]

But this causes Mathematica on my machine to hang indefinitely:

a = 0.0025; Plot[1 - Exp[-a * t], {t, 50, 1000}]

I have to quit and re-start the kernel to recover.

Can anyone reproduce this behavior?  If so, can anyone suggest why this 
happens, or suggest a work around?  Thanks is advance for all help with 
this.

John Stone (v 6.0.2 / Mac OS-X 10.5.2)

• Follow-Ups:
  • Re: Bug in Plot?
    • From: George Woodrow III <georgevw3@mac.com>
  • Re: Bug in Plot?
    • From: Syd Geraghty <sydgeraghty@mac.com>
  • Re: Bug in Plot?
    • From: "W_Craig Carter" <ccarter@mit.edu>