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

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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?

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.

ajeet verma 2017-3-9

thanks for giving me answer but 'flip' is not working instead of this i have tried 'flipud' that give me required result

Walter Roberson 2017-3-9

flip was new as of r2013b

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