How to add a matrix into a specific part of a matrix?

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Matthew Olivo 2018-1-27

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评论： Star Strider 2018-1-27

I have one 4x4 matrix and I'm trying to add a 2x2 matrix to the middle of the 4x4 matrix. I've tried a few commands, but have mainly been told that the dimensions don't agree. I appreciate any help.

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Jan 2018-1-27

Please post your code and a copy of the complete error message.

Matthew Olivo 2018-1-27

Matrix dimensions must agree.

Error in PS03_matrix_magic_olivo_heying (line 38) A(2,:) + M(1,:)

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采纳的回答

Star Strider 2018-1-27

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It is difficult to provide help without giving away the solution. I have a working solution. I would prefer to see your solution first, to determine what the problem is.

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Matthew Olivo 2018-1-27

Thank you! Now I'm just working on making the values I change it to remain permanent, but I'll try to do that on my own first.

Star Strider 2018-1-27

As always, my pleasure!

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更多回答（1 个）

Jan 2018-1-27

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https://ww2.mathworks.cn/matlabcentral/answers/379351-how-to-add-a-matrix-into-a-specific-part-of-a-matrix#answer_302081

在 MATLAB Online 中打开

A = reshape(1:16, 4, 4);  % Some test data
E = rand(2, 2);
A(2:3, 2:3) = A(2:3, 2:3) + E;

I have no idea, what F could be. It would be useful if you explain the details.

I hope this is not a homework. Otherwise my answer made it harder for you to deliver your own solution.

It is part of a homework. I just wanted to know where to start off really because our typical professor has been out and the TA hasn't been much help in teaching the material. I don't realy understand what you given me, but it at least ives me something to experiment with since i tried everything I knew.

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