Replacing part of a matrix with a matrix

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Nick
Nick 2014-9-23
评论： Nick 2014-9-23
Hey guys,
I need to replace part of a matrix with a matrix of zeroes. For simplicity lets just say,
A = [1,2,3;4,5,6;7,8,9]
I would like to replace the top left 2x2 with a matrix of zeroes. How do I do this using matlab commands?
Thanks

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Youssef Khmou
Youssef Khmou 2014-9-23
you can try :
A(1:2,1:2)=0;

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