Squared matrix with elements of the sums of its indices

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Robert Bag
Robert Bag 2021-4-3
编辑： DGM 2021-4-3
Hi. How can i write squared matrix with elements of the sums of the matrix indices?

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回答（1 个）

DGM
DGM 2021-4-3
编辑：DGM 2021-4-3
Do you mean to generate a square matrix whose elements are the sum of its subscripts? If so:
If you're using R2016b or newer, you can do
s=5; % size of matrix
A=(1:s) + (1:s)'
otherwise, you can do this in place of line 2:
A=bsxfun(@plus,(1:s),(1:s)')
Of course, this could be extended to non-square matrices:
s=[4 5]; % size of matrix
A=(1:s(2)) + (1:s(1))'

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