MATLAB: Hi..i need to repeat rows and columns in matrix A

Question

A=[1 2 3 ;4 5 6 ] after answer: 1 1 4 4 2 2 5 5 3 3 6 6

Answer 1

Try this:

After = repelem(A', 1, 2)
After =
     1     1     4     4
     2     2     5     5
     3     3     6     6

The repelem function was introduced in R2015a.