DoubleLongLeftRightArrow 
DoubleLongLeftRightArrow[x,y,…]
显示为 x⟺y⟺….
更多信息
- DoubleLongLeftRightArrow[x,y,…] 无内在意义.
- x⟺y 默认情况下解释为 DoubleLongLeftRightArrow[x,y].
- ⟺ 可以通过 \[DoubleLongLeftRightArrow]或
<==>
输入.
范例
基本范例 (1)
技术笔记
历史
1996年引入 (3.0)
文本
Wolfram Research (1996),DoubleLongLeftRightArrow,Wolfram 语言函数,https://reference.wolfram.com/language/ref/DoubleLongLeftRightArrow.html.
CMS
Wolfram 语言. 1996. "DoubleLongLeftRightArrow." Wolfram 语言与系统参考资料中心. Wolfram Research. https://reference.wolfram.com/language/ref/DoubleLongLeftRightArrow.html.
APA
Wolfram 语言. (1996). DoubleLongLeftRightArrow. Wolfram 语言与系统参考资料中心. 追溯自 https://reference.wolfram.com/language/ref/DoubleLongLeftRightArrow.html 年
BibTeX
@misc{reference.wolfram_2025_doublelongleftrightarrow, author="Wolfram Research", title="{DoubleLongLeftRightArrow}", year="1996", howpublished="\url{https://reference.wolfram.com/language/ref/DoubleLongLeftRightArrow.html}", note=[Accessed: 29-April-2026]}
BibLaTeX
@online{reference.wolfram_2025_doublelongleftrightarrow, organization={Wolfram Research}, title={DoubleLongLeftRightArrow}, year={1996}, url={https://reference.wolfram.com/language/ref/DoubleLongLeftRightArrow.html}, note=[Accessed: 29-April-2026]}