## What is the operation to reach such arrangement of a discrete signal?

Hello
I have a discrete signal as follows: $\Big[x(1) \,\,\, x(2) \,\,\, \dots \,\,\, x(M+K) \Big]$ and I want to do some operation (esp. a well known matrix e.g Vandermonde) to create this matrix:

[TEX]

$\begin{bmatrix} x(1) & x(2) & \dots & x(K) \\ x(2) & x(3) & \dots & x(K+1) \\ \vdots & \vdots & \vdots & \vdots \\ x(M) & x(M+1) & \dots & x(M+K) \\ \end{bmatrix}$

Generating the above matrix can not be done using a simple matrix multiplication, (is it?). However, is there any known operation for such arrangement?