Create a specific matrix (MATLAB)

Dear members

I want create a square matrix in such a way that I got the general form:

For example if we have m=4, we got:

How can I program that please!

Answer 1

[Star Strider]

Try this —

M = hankel(1:4,4:-1:1)

M = 4×4

1 2 3 4 2 3 4 3 3 4 3 2 4 3 2 1

.

[high speed]

@Star Strider Thank you! That's what I need

[Star Strider]

As always, my pleasure!

Answer 2

[DGM]

This is one way:

A = flipud(toeplitz([4 3 2 1]))

A = 4×4

1 2 3 4 2 3 4 3 3 4 3 2 4 3 2 1

[high speed]

@DGM Thank you!