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>