small matrix in big matrix

2013 6 2
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I want to put a small matrix (p*q) called B into a bigger matrix (m*n) called A. How can I do it. Matrix B should be put on the left-right corner of matrix A.

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Image Analyst
Image Analyst 2013-6-2
编辑：Image Analyst 2013-6-2
Why do you post this when you had a better version of this question already posted at http://www.mathworks.com/matlabcentral/answers/77743-put-a-small-matrix-in-a-bigger-one 40 minutes earlier. Please don't duplicate questions. I already answered there for you.
the cyclist
the cyclist 2013-6-2
编辑：the cyclist 2013-6-2
Walter's comment here http://www.mathworks.com/matlabcentral/answers/77746-small-matrix-in-big-matrix duplicates Image Analyst's comment here: http://www.mathworks.com/matlabcentral/answers/77746-small-matrix-in-big-matrix.
[Sorry. Couldn't resist teasing the master!]

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the cyclist
the cyclist 2013-6-2

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I don't know what "left-right corner" means, but in general you can do this as:
A = magic(7);
B = magic(3);
A(2:4,3:5) = B;

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