comp.lang.idl-pvwave archive: archive

Home » Public Forums » archive » Discrete Laplacian

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

Discrete Laplacian [message #33067]

Sun, 24 November 2002 22:18

Thomas Gutzler
Messages: 44
Registered: November 2002

Member

Hi,

did somebody port the Matlab-function "DEL2()" to IDL or know where I
can find a function that does the same ?

I need this part:
L = DEL2(U) when U is a matrix, is an discrete approximation of
0.25*del^2 u = (d^2u/dx^2 + d^2/dy^2)/4. The matrix L is the same
size as U with each element equal to the difference between an
element of U and the average of its four neighbors.

Thanks,
Thomas

Report message to a moderator

[Message index]

Discrete Laplacian

By: Thomas Gutzler on Sun, 24 November 2002 22:18

Previous Topic:	sec : U Re: Producing potable color images from IDL?
Next Topic:	Re: Discrete Laplacian

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Sat Apr 11 02:50:36 PDT 2026

Total time taken to generate the page: 0.01658 seconds