5.4) Joining And Reshaping Arrays

cat - concatenate (join) vectors and matrices (A1,A2,...) along a specified dimension (dim). The syntax is cat(dim,A1,A2,...)

[matlab]
>> a=rand(3,3);
>> b=ones(3,3)*pi;
>> c=cat(3,a,b)
[/matlab]

So that "c" now has dimensions 3x3x2.

reshape = change dimensions of a vector or matrix