看板 LaTeX 關於我們 聯絡資訊
\usepackage{amsmath} %with align math environment \begin{align} =E3=80=80(x+y)(x-y) &=3D x=CB=862-xy+xy-y=CB=862 \nonumber \\ =E3=80=80&=3D x=CB=862-y=CB=862 \nonumber \end{align}
debdeb:謝謝! 07/26 11:26