の実験続き - niming538の日記

$\sin (\theta + \frac{\pi}{2}) = \cos \theta$ (tex:\sin (\theta + \frac{\pi}{2}) = \cos \theta]
$\perm \permutation \combination \combi \comb$
$_n C_m$ (tex: _n C_m]
$\today$ (tex:\today)
$a,a;a:a\:\:\:\:a\,a\:a\;a\:a$ (tex:a,a;a:a\:\:\:\:a\,a\:a\;a\:a)
$\text this is apen^2$ (tex:\text this is apen^2)
$this is a pen^2$ (tex:this is a pen^2)

$\begin{pmatrix}0&1&2\\-1&-1&-1\\0&0&0\end{pmatrix}$ (tex:\begin{pmatrix}0&1&2\\-1&-1&-1\\0&0&0\end{pmatrix}]())
$\begin{matrix}{rrr}0&1&2\\-1&-1&-1\\0&0&0\end{matrix}$ (tex:\begin{matrix}{rrr}0&1&2\\-1&-1&-1\\0&0&0\end{matrix})

$\begin{matrix}{rrr}&1245878&\\1&2\\1&2&3 \end{matrix}$ (tex:\begin{matrix}{rrr}&1245878&\\1&2\\1&2&3 \end{matrix})

$\begin{matrix}{rrr}123&1245878&45\\1&2&12345\\1&2&3 \end{matrix}$
(tex:$\begin{matrix}{rrr}123&1245878&45\\1&2&12345\\1&2&3 \end{matrix}$)

$123&1245878&45\\1&2&12345\\1&2&3$
(tex:${rrr}123&1245878&45\\1&2&12345\\1&2&3 $)

$\left( \begin{array}{rrrr} \dots&\dots&\dots& \\ 1& 2& 3& \\ 1& 2& 3& \\ \ddots&\vdots&\hdots& \\ \end{array} \right)$
(tex:\left( \begin{array}{rrrr} \dots&\dots&\dots& \\ 1& 2& 3& \\ 1& 2& 3& \\ \ddots&\vdots&\hdots& \\ \end{array} \right))