DoubleUpDownArrow 
DoubleUpDownArrow[x,y,…]
显示为 x⇕y⇕….
更多信息
- DoubleUpDownArrow[x,y,…] 无内部意义.
- x⇕y 默认情况下解释为 DoubleUpDownArrow[x,y].
- ⇕ 可以通过 \[DoubleUpDownArrow]输入.
范例
基本范例 (2)
DoubleUpDownArrow[x, y, z]使用排版字符的输入会生成一个DoubleUpDownArrow表达式:
x⇕y⇕z//FullForm技术笔记
历史
1996年引入 (3.0)
文本
Wolfram Research (1996),DoubleUpDownArrow,Wolfram 语言函数,https://reference.wolfram.com/language/ref/DoubleUpDownArrow.html.
CMS
Wolfram 语言. 1996. "DoubleUpDownArrow." Wolfram 语言与系统参考资料中心. Wolfram Research. https://reference.wolfram.com/language/ref/DoubleUpDownArrow.html.
APA
Wolfram 语言. (1996). DoubleUpDownArrow. Wolfram 语言与系统参考资料中心. 追溯自 https://reference.wolfram.com/language/ref/DoubleUpDownArrow.html 年
BibTeX
@misc{reference.wolfram_2026_doubleupdownarrow, author="Wolfram Research", title="{DoubleUpDownArrow}", year="1996", howpublished="\url{https://reference.wolfram.com/language/ref/DoubleUpDownArrow.html}", note=[Accessed: 15-September-2026]}
BibLaTeX
@online{reference.wolfram_2026_doubleupdownarrow, organization={Wolfram Research}, title={DoubleUpDownArrow}, year={1996}, url={https://reference.wolfram.com/language/ref/DoubleUpDownArrow.html}, note=[Accessed: 15-September-2026]}