Talk:Nonagonal number

True or false: this article should be moved to Enneagonal number. (An answer of false requires a paragraph containing at least 5 sentences.) 66.245.3.155 22:03, 18 Aug 2004 (UTC)


 * False.
 * How many people refer to a nine-sided polygon as an enneagon?
 * Google results in 3,320 hits, while Google results in 1,770 hits.
 * Renaming the page would be in conflict with Manual of Style.
 * A redirect would be more appropriate.
 * I've redirected enneagonal number to nonagonal number.
 * --Eequor 19:19, 19 Aug 2004 (UTC)

Well, I think Eequor has pretty much covered all the bases, so I would just have to reiterate four of the things she has said in order to reach 5 sentences. PrimeFan 20:28, 19 Aug 2004 (UTC)
 * False.
 * 1) MathWorld has "enneagonal" as an alias, not as the primary term.

Not very accessible
I'm not understanding this page. I don't know what it means to represent a nonagon:
 * A nonagonal number or enneagonal number is a figurate number that represents a nonagon. 

Looking at figurate (which suggests that this is in 8 dimensions), nonagon (which suggests this is in 2 dimensions), and triangular number didn't provide much illumination. I think it would be useful to show how you get 24. Cheers, --Jake 18:37, 2 March 2007 (UTC)


 * An illustration made this crystal clear for me; the article should have one (I'll put it on the todo list). For now, you could take a look at If you count the dots in the third nonagon, there ought to be 24 of them. PrimeFan 22:23, 2 March 2007 (UTC)


 * Thank, that does make it clear (thought perhaps does not motivate why it is interesting or useful). So, does it have anything to do with figurate? --Jake 00:44, 8 March 2007 (UTC)

Move discussion in progress
There is a move discussion in progress on Talk:Nonagon which affects this page. Please participate on that page and not in this talk page section. Thank you. —RMCD bot 22:45, 14 January 2020 (UTC)