DIAG Function

Makes a diagonal array or extracts the diagonal of an array.

Usage

d = DIAG( a )

Input Parameters

a — An array.

Returned Value

d — If a is one-dimensional then d is the n-dimensional diagonal array with diagonal a; otherwise, d is the diagonal of a.

Keywords

n — The dimensionality of d when a is one-dimensional. (Default: 2)

Example

a = DIAG( [1,1,1] )
PM, a
; PV-WAVE prints:
;    1       0       0
;    0       1       0
;    0       0       1
PM, DIAG( a )
; PV-WAVE prints:
;    1
;    1
;    1