>>> "IK" == Ikumi Keita <ik...@ikumi.que.jp> writes:
Hi Keita,
> 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?
I expect this
#+begin_src
\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_src
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