此为 Mathematica 7 文档,内容基于更早版本的 Wolfram 语言
查看最新文档(版本11.1)
Mathematica 前端令牌

"Fraction"

This token has not been fully integrated into the long-term Mathematica system, and is subject to change.
"Fraction"
is a front end token that creates a FractionBox and fills the numerator with a selection.
  • "Fraction" fills the numerator with the subexpression to the left of the selection if it is an insertion point.