送交者: 勾子 于 2005-11-24, 07:45:20:

回答: use \underset{n-x}{\longrightarrow} 由 cs 于 2005-11-23, 22:38:49:

• Use LaTeX, with \usepackage{amsmath} - cs (36 bytes) 2005-11-24, 18:18:37
  • it works. thanks. - 勾子 (0 bytes) 2005-11-24, 20:39:20

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