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 Author Comment/Response Alex 05/20/09 04:59am Hello Can mathematica find a positive diagonal in a square matrix? For example: 0 4 3 0 2 0 0 9 0 0 0 1 7 8 6 5 one of positive diagonales is: a12,a21,a34,a43 (the numbers 4,2,1,6). Question2: I need the positive diagonal to divide my matrix into permutationsmatrices, for example: 0005 0320 5000 0230 = 2* ( 0001 0010 1000 0100 ) + 3* 0001 0100 1000 0010 I have a double stochastic matrix, so it will always be possible to divide matrix into some permutaionsmatrices (matrices with exactly one "1" in every row and column. the rest is 0). Can mathematica divide matrices in this way? I can also do it by myself, if Mathematica can find a positive diagonal for me (question1). Thank you URL: ,

 Subject (listing for 'Find a positive diagonal') Author Date Posted Find a positive diagonal Alex 05/20/09 04:59am Re: Find a positive diagonal Tom 05/26/09 07:07am Re: Find a positive diagonal yehuda ben-s... 05/31/09 02:18am
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