Method on @sym: vertcat (x, y, …)
Operator on @sym: [x; y; …]

Vertically concatenate symbolic arrays.

Example:

A = sym([1 2])
  ⇒ A = (sym) [1  2]  (1×2 matrix)
[A; A; 2*A]
  ⇒ (sym 3×2 matrix)
      ⎡1  2⎤
      ⎢    ⎥
      ⎢1  2⎥
      ⎢    ⎥
      ⎣2  4⎦

See also: @sym/horzcat, @sym/cat.

Package: symbolic