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How to pass a function to a function?

• To: mathgroup at smc.vnet.net
• Subject: [mg93653] How to pass a function to a function?
• From: Aaron Fude <aaronfude at gmail.com>
• Date: Thu, 20 Nov 2008 04:57:16 -0500 (EST)

Hi,

How does one write a call a function that represents an operator? In
other words, it takes a function and returns another function.

For example, if you think of the Laplacian I want to do something like
this (pseudo code):

f[x_, y_] := x^4 +y^4
g = Laplacian[f];

N[g[1, 1], 50]

How would one write "Laplacian"?

Many thanks in advance,

Aaron

• Follow-Ups:
  • Re: How to pass a function to a function?
    • From: "Aaron Fude" <aaronfude@gmail.com>
  • Re: How to pass a function to a function?
    • From: Murray Eisenberg <murray@math.umass.edu>