3-dimensional array

Example a=[1 0;0 1] b=[2 2;2 2] c=[0 3;3 0] d=cat(3,a,b,c) ==> d(:,:,1)=a ; d(:,:,2)=b; d(:,:,3)=c.

I have n-dimensional arrays are the same size, I want to merge into a 3-dimensional array. I have known about the "cat" function to concatenates into 3-dimensional array such as example , but not understand much about how to use it to solve my problem

[Andrew Newell]

Can n be greater than 3?

[Oleg Komarov]

@yen: Do you have a question?