摘要: \begin{array}{cc} a & b \\ c & d \end{array}\begin{equation} \int_0^\infty \frac{x^3}{e^x-1}\,dx = \frac{\pi^4}{15} \label{eq:sample} \end{equation} 阅读全文
posted @ 2014-02-03 12:38 嘟嘟璐 阅读(215) 评论(0) 推荐(0)