Combinatorica`
Combinatorica`
EmptyQ
As of Version 10, most of the functionality of the Combinatorica package is built into the Wolfram System. »
EmptyQ[g]
yields True if graph g contains no edges.
更多信息和选项
- EmptyQ functionality is now available in the built-in Wolfram Language function EmptyGraphQ.
- To use EmptyQ, you first need to load the Combinatorica Package using Needs["Combinatorica`"].
范例
基本范例 (2)
EmptyQ has been superseded by EmptyGraphQ:
Wolfram Research (2012)，EmptyQ，Wolfram 语言函数，https://reference.wolfram.com/language/Combinatorica/ref/EmptyQ.html.
文本
Wolfram Research (2012)，EmptyQ，Wolfram 语言函数，https://reference.wolfram.com/language/Combinatorica/ref/EmptyQ.html.
CMS
Wolfram 语言. 2012. "EmptyQ." Wolfram 语言与系统参考资料中心. Wolfram Research. https://reference.wolfram.com/language/Combinatorica/ref/EmptyQ.html.
APA
Wolfram 语言. (2012). EmptyQ. Wolfram 语言与系统参考资料中心. 追溯自 https://reference.wolfram.com/language/Combinatorica/ref/EmptyQ.html 年