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Re: Careless use of Scaled leads to hard crash in V7

  • To: mathgroup at smc.vnet.net
  • Subject: [mg97232] Re: Careless use of Scaled leads to hard crash in V7
  • From: "Sjoerd C. de Vries" <sjoerd.c.devries at gmail.com>
  • Date: Mon, 9 Mar 2009 01:02:03 -0500 (EST)
  • References: <gp0829$l3o$1@smc.vnet.net>

I'm on WinXP / Mathematica 7.0.1. I don't get a crash but my whole
system becomes extremely unresponsive, with processor load on maximum.

Cheers -- Sjoerd

On Mar 8, 12:52 pm, JUN <noec... at gmail.com> wrote:
> Hi,
> I just saw a crash in Mathematica V 7 on Mac OS X Tiger and Leopard. The
> program (reproducibly) "quits unexpectedly" after doing the following:
>
> 1)
> Evaluate
> Graphics3D[{Arrowheads[Scaled[.05]], Arrow[Tube[{{0, 0, 0}, {1, 0,
> 0}}, Scaled[.05]]]}]
>
> 2)
> Use arrow keys to go back to previous input cell and try to delete the
> occurrence of Scaled[.05] in Arrowheads, replacing it with .1 or some
> other value. You may not even get this far, the crash sometimes
> happens earlier.
>
> 3)
> Repeat steps 1 and 2 if necessary.
>
> There briefly is an "Internal Self Test Error" message before the
> crash wipes Mathematica off the screen.
>
> This is not exactly the most pleasant way of learning that Scaled
> lengths can't be used inside Arrowhead.
> I wonder if this crash also happens on other platforms.
>
> Jens



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