Combinatorica`
Combinatorica`
Contract
As of Version 10, most of the functionality of the Combinatorica package is built into the Wolfram System. »
Contract[g,{x,y}]
gives the graph resulting from contracting the pair of vertices {x,y} of graph g.
更多信息和选项
- Contract functionality is now available in the built-in Wolfram Language function VertexContract.
- To use Contract, you first need to load the Combinatorica Package using Needs["Combinatorica`"].
Wolfram Research (2012)，Contract，Wolfram 语言函数，https://reference.wolfram.com/language/Combinatorica/ref/Contract.html.
文本
Wolfram Research (2012)，Contract，Wolfram 语言函数，https://reference.wolfram.com/language/Combinatorica/ref/Contract.html.
CMS
Wolfram 语言. 2012. "Contract." Wolfram 语言与系统参考资料中心. Wolfram Research. https://reference.wolfram.com/language/Combinatorica/ref/Contract.html.
APA
Wolfram 语言. (2012). Contract. Wolfram 语言与系统参考资料中心. 追溯自 https://reference.wolfram.com/language/Combinatorica/ref/Contract.html 年