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how to replace the element in matrix?

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win
win 2013-5-16
评论： Burak Ahmet Celebi 2021-3-31
i have a matrix
if true
A = [ 1 5 9 7
3 5 7 8
8 2 4 6 ];
end
now i want to put number 12 in the location of A(2,2)
also i want to put number 13 in the location of A(3,3)
how can i do please help me

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采纳的回答

Yao Li
Yao Li 2013-5-16
A(2,2)=12;
A(3,3)=13;

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