how to create 3D array

Hi,

I have a matrix which contains the center(x and y coordinates, 10*2 matrix ) of 10 hexagons. I need to create a 3D array such that it stores the hexagon number along with its center. For example

B=[x1,y1,1
   x2,y2,2
   x3,y3,3
  ...
   x10,y10,10]

I never used 3D arrays and I went to the tutorial and its some what confusing.And, suppose if I want to access only X and Y coordinates of all hexagons and only the number of hexagon,should I use B(1,2,:) and B(:,:,1)?Can you please help me here.

Answer 1

[Stalin Samuel]

XY_coordinates = B(:,1:2)