Wikipedia:Reference desk/Archives/Mathematics/2016 November 3

= November 3 =

Math coding (Hyperbolic function)
Can someone finish the job and code  ? יהודה שמחה ולדמן (talk) 10:19, 3 November 2016 (UTC)
 * Well? יהודה שמחה ולדמן (talk) 11:07, 6 November 2016 (UTC)
 * It’s unclear what you are asking. You want someone to add support for them to the math extension? That is beyond the scope of this reference desk. You could ask at the technical village pump, or on MediaWiki such as the talk page of the extension.-- JohnBlackburne wordsdeeds 11:46, 6 November 2016 (UTC)


 * You didn't ask, but you can use  as a workaround: $$\sec x, \operatorname{sech} x$$. -- BenRG (talk) 02:34, 7 November 2016 (UTC)

What is the shape of part of a slice of pie outside another part of a slice of pie?
In this photo, what do you call the shape of the area that is mostly green and the shape of the area that is mostly darker brown? I know pie-shape is what people call the triangular light brown area.— Vchimpanzee  •  talk  •  contributions  •  20:03, 3 November 2016 (UTC)
 * They call it "my piece of pie". --Trovatore (talk) 20:21, 3 November 2016 (UTC)
 * The light brown shape is called a circular sector. The other shapes are sectors of an Annulus (mathematics) and in the article they're called annulus sectors. --RDBury (talk) 20:42, 3 November 2016 (UTC)