Section: Object Oriented Programming
cat (DIM, A, B) cat (DIM, A, B, C ...)
to return the concatenation along the dimension DIM of all arguments.
cat(1, A, B, C) is the same as [A; B; C] or vertcat(A, B, C).
cat(2, A, B, C) is the same as [A, B, C] or horzcat(A, B, C).