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ToBeReviewed/CALCULS/

determ3.pro

topdeterm3

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

NAME:determ3 PURPOSE: computes the determinant of n 3 by 3 arrays CATEGORY: no DO loops and better accuracy CALLING SEQUENCE:2 cases: res = determ2(z2ds) res = determ2(in00, in01, in02, in10, in11, in12, in20, in21, in22) INPUTS: z2ds: an 3*3*n array or in00, in01, in02, in10, in11, in12, in20, in21, in22: the nine n elements arrays defined as: in00 = z2ds[0, 0, *] in01 = z2ds[0, 1, *] in02 = z2ds[0, 2, *] in10 = z2ds[1, 0, *] in11 = z2ds[1, 1, *] in12 = z2ds[1, 2, *] in20 = z2ds[2, 0, *] in21 = z2ds[2, 1, *] in22 = z2ds[2, 2, *] OUTPUTS: n elements array, the determinent of each 3*3 arrrays EXAMPLE: a=findgen(3,3,5) print, determ3(a^2) FOR i=0,4 DO print, determ((a[*,*,i])^2) ; IDL solution MODIFICATION HISTORY:

Parameters

in00       

in01       

in02       

in10       

in11       

in12       

in20       

in21       

in22       

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