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Re: Why don't my plots appear? My 5.2 code no longer works correctly

  • To: mathgroup at smc.vnet.net
  • Subject: [mg89344] Re: Why don't my plots appear? My 5.2 code no longer works correctly
  • From: "Kevin J. McCann" <Kevin.McCann at umbc.edu>
  • Date: Sat, 7 Jun 2008 02:51:02 -0400 (EDT)
  • Organization: University System of Maryland
  • References: <g2b4nj$nlf$1@smc.vnet.net>

Well, I don't envy your present situation. We have all been there. You 
should have the 6.0 compatibility tool show up when you opened your 5.2 
nb in 6.0. This will clear *much* of the problems.

1) plots no longer have a semicolon at the end unless you wish to 
supress output; so, just remove them;

2) The pink bit means there is a graphics error of some kind. If you 
mouseover the are, it should tell you what the problem is.

Charlie Brummitt wrote:
> Hello,
> I am running into difficulties with Plot. Some code of mine that worked in
> 5.2 no longer works correctly in 6.0.2.0. Specifically, no plots appear
> whenever Plot (or Plot3D or DensityPlot or ListPlot) is called within a
> function that I have defined.
> 
> Here is a closely related question: What does the red semicolon ";" mean at
> the end of "Plot[ ... ];"? Why is it red? In 5.2, placing a semicolon at the
> end of Plot[] allowed me to output a plot in the middle of a computation,
> without halting the computation. Now I can no longer seem to output a plot
> in the middle of a long computation. (I only see the output of Print[]
> commands.) I must be able to see these plots during long computations, like
> I was able to in 5.2.
> 
> What's wrong? Can anyone please help?
> 
> Thanks,
> 
> Charlie
> 
> 


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