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To hand over data from \escript to \MATPLOTLIB the values need to mapped onto a rectangular grid 
To hand over data from \escript to \MATPLOTLIB the values need to mapped onto a rectangular grid 
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\footnote{Users of Debian 5(Lenny) please note: this example makes use of the \function{griddata} method in \module{matplotlib.mlab}. 
\footnote{Users of Debian 5(Lenny) please note: this example makes use of the \function{griddata} method in \module{matplotlib.mlab}. 
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This method is not part of version 0.98.1 which is available with Lenny. 
This method is not part of version 0.98.1 which is available with Lenny. 
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If you wish to use \MATPLOTLIB, you may need to install a later version. 
If you wish to use contour plots, you may need to install a later version. 
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Users of Ubuntu 8.10 or later and people should be fine.}. We will make use 
Users of Ubuntu 8.10 or later should be fine.}. We will make use 
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of the \numpy module. 
of the \numpy module. 
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First we need to create a rectangular grid. We use the following statements: 
First we need to create a rectangular grid. We use the following statements: 