Good morning everyone, I have a problem using the command
$$\mathbf{u} = \begin{Bmatrix} u_i & v_i & w_i & \theta_i & \phi_i & \psi_i & u_j & v_j & w_j & \theta_j & \phi_j & \psi_j \end{Bmatrix}^T$$
In particular, in the compilation output, the vector becomes a matrix with two rows: \phi_j and \psi_j change line and form an other row. Can someone help me?
\setcounter{MaxMatrixCols}{12}before the matrix.\setcounter{MaxMatrixCols}{20}would also work. – Apr 27 '20 at 09:03