Numeric array referencing vs copying.

[Maarten van Reeuwijk]

Whoops, detected a small bug in the example code: u and v should be floats.

So
> u = arange(9)

should be

u = arange(9.)

This makes the outcome of the script a little more convincing :)

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Maarten van Reeuwijk                    Thermal and Fluids Sciences
Phd student                             dept. of Multiscale Physics
www.ws.tn.tudelft.nl                 Delft University of Technology