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Re: two plots in Mathemtica 7. Bug?
*To*: mathgroup at smc.vnet.net
*Subject*: [mg95759] Re: two plots in Mathemtica 7. Bug?
*From*: Bob F <deepyogurt at gmail.com>
*Date*: Mon, 26 Jan 2009 05:03:40 -0500 (EST)
*References*: <glj880$dhn$1@smc.vnet.net>
On Jan 25, 7:47 pm, "sv07171024" <steven_... at telenet.be> wrote:
> Hi,
> when I execute
>
> << ComputationalGeometry`;nodes = Table[Random[], {20}, {2}];
> DiagramPlot[nodes] ; PlanarGraphPlot[nodes]
>
> in Mathematica 7 I only get the latter (the Delaunay diagram), while,
> IIRC, Mathematica 6 showed both. I found that I could get both plots if
> I add a second semi-column between the plot statement. In this case
> they are put side by side rather than above each other, with the
> semi-columns between them. A bug?
A semicolon suppresses graphics output, just like it suppresses text
output. So the behavior of the semicolon is now more consistent no
matter what it refers to.
I think this is true in version 6 and newer. But your comment about
the two semicolons producing side by side plots completely stumps me.
I tried it on my Mac with version 7 and it too gives side-by-side
(though much smaller) plots of the two planar graphs.
If you just put the first DiagramPlot[] command on its own line
(without the semicolon) and you get both plots. e.g.
<< ComputationalGeometry`; nodes = Table[Random[], {20}, {2}];
DiagramPlot[nodes]
PlanarGraphPlot[nodes]
-Bob
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