problem in inserting a diagnol
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hi, i have a problem in inserting the diagnol of a matrix. i have a=[1 2 3;4 5 6;7 8 9] in which i have to extract the diagnol by multiplying with 2 and i want to again insert the diagnol i,e iwant to have [2 2 3;4 10 6;7 8 18]; i dont want to use the loop.
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Conrad
il 12 Lug 2012
A = [ 1 2 3;...
4 5 6;...
7 8 9];
A(1:(length(A)+1):numel(A)) = 2*diag(A);
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