How can i extract small matrix from a big matrix

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aiman 2022-11-7

评论： aiman 2022-11-7

Hello,

how can extract rows and columns from a big matrix using MATLAB ,For example I have 10*10 matrix and i only want first five rows and first column

aiman 2022-11-7

Thank you that's helped!

BN 2022-11-7

编辑：BN 2022-11-7

Let A be your example matrix (10x10), and you want to extract the first 5 rows of its first column. It's pretty easy:

A = rand(10,10); % creating random 10*10 matrix
B = A(1:5, 1); % extract first 5 rows of first column

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