how can i replce numbers at the end of rows and coloumns in same metrix?

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rising falcon
rising falcon 2015-10-7
编辑： rising falcon 2015-10-9
A=zeros(4) and i want to replce numbers at the end of 3rd,4th row and 3rd,4th coloumns. how can i do this?

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Titus Edelhofer
Titus Edelhofer 2015-10-7
Hi,
replacing is a question of indexing. Try
A(3:4, 3:4)
and you should see a 2x2 Matrix. Replace this by any other 2x2 matrix using =
A(3:4,3:4) = rand(2,2);
Titus

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