del2 (MathScript Function) (Windows, Not in Base Package)

LabVIEW 8.5 Help
August 2007

NI Part Number:
371361D-01

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Member of the vector class.

Syntax

c = del2(a)

c = del2(a, d)

c = del2(a, dx, dy)

Computes the discrete version of the Laplacian scaled by 0.25. The algorithm in this function works with cyclic boundary conditions.

Name	Description
a	Specifies a matrix.
d	Specifies the resolution in x and y. The default is 1, or dx = dy = 1.
dx	Specifies the resolution in x. dx is a positive scalar. The default is 1.
dy	Specifies the resolution in y. dy is a positive scalar. The default is 1.

Name	Description
c	Returns a matrix that represents the Laplacian scaled by 0.25.

A = peaks(30);
C = del2(A);
surf(C)