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ToBeReviewed/CALCULS/

determ3.pro

computes the determinant of n 3 by 3 arrays. Z2DS is an 3*3*n array

topdeterm3 Without loop

result = determ3(in00, in01, in02, in10, in11, in12, in20, in21, in22)

Return value

n elements array, the determinant of each 3*3 arrays

Parameters

in00        in required

It is an n element array defined by in00 = z2ds[0, 0, *]

in01        in required

It is an n element array defined by in01 = z2ds[0, 1, *]

in02        in required

It is an n element array defined by in02 = z2ds[0, 2, *]

in10        in required

It is an n element array defined by in10 = z2ds[1, 0, *]

in11        in required

It is an n element array defined by in11 = z2ds[1, 1, *]

in12        in required

It is an n element array defined by in12 = z2ds[1, 2, *]

in20        in required

It is an n element array defined by in20 = z2ds[2, 0, *]

in21        in required

It is an n element array defined by in21 = z2ds[2, 1, *]

in22        in required

It is an n element array defined by in22 = z2ds[2, 2, *]

Examples

IDL> a=findgen(3,3,5) IDL> print, determ3(a^2) IDL> FOR i=0,4 DO print, determ((a[*,*,i])^2)

Version history

Version

$Id: determ3.pro 371 2008-08-07 09:32:02Z pinsard $

History

S. Masson (smasson@lodyc.jussieu.fr) July 11th, 2002

Statistics

McCabe cyclic 3
McCabe essential 1
McCabe modular design 1
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