Hi Uwe, >>>>> Uwe Brauer <o...@mat.ucm.es> writes: > That seems to me also a strange result.
It seems to me an ordinary result in array environment, "&" signs are vertically aligned. What other result do you expect? > \begin{equation}\label{Mn} > \begin{array}{rcl} > \lim_{n\rightarrow\infty} M^n &=& \lim_{n\rightarrow\infty} PJ^nP^{-1} \\ > \\ > &=& > \begin{pmatrix} > 1 & 1 \\ > 0 & \tfrac{999}{10} \\ > \end{pmatrix} > \begin{pmatrix} > e^{-100t} & 0 \\ > 0 & e^{-\tfrac{t}{10}} \\ > \end{pmatrix} > \begin{pmatrix} > 1 & -\tfrac{10}{999} \\ > 0 & \tfrac{10}{999} \\ > \end{pmatrix} \\ > \\ > &=& > \begin{pmatrix} > e^{-100t} & > \tfrac{10}{999}(e^{-\tfrac{t}{10}} - e^{-100t}) \\ > 0 & e^{-\tfrac{t}{10}} \\ > \end{pmatrix} > \end{array} > \end{equation} > \end{document} Regards, Ikumi Keita #StandWithUkraine #StopWarInUkraine