What mean function diag and fliplr explain this two functions?

2015 3 6
2 个回答
更新时间：2015 3 6
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回答（2 个）

Star Strider
Star Strider 2015-3-6

0 个投票

If you are talking about my not yet Accepted Answer to your previous question, the diag function creates the diagonal matrices (see the documentation for details), and since the matrix you want is the mirror-image (enantiomer) of the one I created, I used fliplr to create the one you want.
My code from that Answer:
A = zeros(8);
for k1 = 4:7
A = A + diag(ones(1,8-k1),k1);
A = A + diag(ones(1,8-k1),-k1);
end
A = fliplr(A)

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