Adding two matrices of different sizes?

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Bibhu Prasad Pala 2017-6-9

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https://ww2.mathworks.cn/matlabcentral/answers/344037-adding-two-matrices-of-different-sizes

编辑： Walter Roberson 2017-6-10

A=[1 2 3 4;8 7 9 6 ;4 5 6 1]
B=[4 8 9 8 ;1 2 3 4 ]

how can i add A and B?

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KSSV 2017-6-9

YOu have to extend B's size to A either by padding zeros at first row or end row and then add.

Stephen23 2017-6-9

@ Bibhu Prasad Pala: of course this can be done, once you define what you mean by "Adding two matrices of different sizes". For example, matrix A has three rows, but matrix B has only two rows: what would you expect the values in the third row of A to be added to?

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