matrix multiple line should be the same

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TheDice 2021-4-21

回答： DGM 2021-4-21

hello i want to write a matrix in which the first two rows are equal and the third and fourth are also equal. so this is how it should look:

x = 1 2 3 4 5
2 3 4 5
7 8 9 10
7 8 9 10

TheDice 2021-4-21

or even better:

DGM 2021-4-21

x = [1 2 3 4 5;
    6 7 8 9 10]
% replicate elements in 2x1 blocks
xx = repelem(x,2,1)

gives

xx =
   2     3     4     5
   2     3     4     5
   7     8     9    10
   7     8     9    10

for replicating columns, just use

% replicate elements in 1x2 blocks
xx = repelem(x,1,2)

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