description:
A = vertcat(varargin) performs vertical concatenation. vertcat(A,B) or [A;B] is the vertical concatenation of matrices A and B. A and B must have the same number of columns. Any number of matrices can be concatenated within one pair of brackets.
arguments:
matrices of NCpolys with the same number of columns
output:
matrix of NCpolys
possible usage:
[A1;A2;...;An], vertcat(A1,A2,...,An)
examples:
>> A=[x y;-y x^2]
A = x y
-y x^2
>> [A;A]
ans = x y
-y x^2
x y
-y x^2