Talk:Alternating permutation

From Wikipedia, the free encyclopedia
Jump to: navigation, search
WikiProject Mathematics (Rated Start-class, Mid-importance)
WikiProject Mathematics
This article is within the scope of WikiProject Mathematics, a collaborative effort to improve the coverage of Mathematics on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.
Mathematics rating:
Start Class
Mid Importance
 Field: Algebra
This article has comments.

Zigzag & alternating meaning[edit]

There seems to be some variation in the sources as to the definitions. For example Mathworld does not require c1< c2 for alternating permutation but Sloane does. I've tried to create the most reasonable compromise in which An is the number of alternating permutations and Zn is the number of zigzag permutations, where An and Zn are as used in Mathworld.--RDBury (talk) 15:06, 18 January 2009 (UTC)