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Re: How to evaluate the Laplacian of a function as a function?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg114354] Re: How to evaluate the Laplacian of a function as a function?
  • From: dr DanW <dmaxwarren at gmail.com>
  • Date: Thu, 2 Dec 2010 05:37:44 -0500 (EST)
  • References: <id4sma$ci5$1@smc.vnet.net>

This is a pattern I use a lot for exactly the same problem.  Try:

LaplacianOfFunc = Function[{Xx, Yy}, Evaluate[Laplacian[func[Xx,
Yy]]]]

Now you can use LaplacianOfFunc as a function in two variables, as in

Plot3D[LaplacianOfFunc[x, y], {x, 0, 6}, {y, 0, 6}]

Enjoy,
Daniel


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