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how to set anti diagonal part of matrix with zero value elements ?

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ajeet verma
ajeet verma 2017-3-8
评论： Walter Roberson 2017-3-9
i know that how to set diagonal part of matrix to zero, for that we have a code m=256; n=256; a=ones(m,n); u=triu(a); imshow(u);
but in case of anti diagonal what will be code?

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Nicolai Sanders
Nicolai Sanders 2017-3-8
I think this might do what you need.
m=256; n=256; a=ones(m,n); u=flip(triu(a)); imshow(u);
Look at the help page for "flip" to see the options.

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