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Recently Referred Formulae

\left\{ \begin{array}{rcrcr}
2x & + & 5y & = & -3 \\
3x & + & y & = & 2
\end{array} \right.
y &=& \log_e x \\
\frac{d}{dx}y &=& \frac{1}{x}
複数行にわたる数式のサンプル
y &=& \ln x \\
\frac{d}{dx}y &=& \frac{1}{x}
連立方程式のサンプル
\left\{ \begin{array}{rcrcr}
2x & + & 5y & = & 12 \\
3x & + & y & = & 5
\end{array} \right.
\mbox{\LaTeX}