Pontigailimma: Difference between revisions
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The '''pontigailimma''' is an [[unnoticeable comma|unnoticeable]] [[13-limit]] (specifically [[2.3.5.7.13 subgroup|2.3.5.7.13-subgroup]]) [[comma]] with a [[ratio]] of '''1990656/1990625''' (0.027{{cent}}). It is the difference between two [[7/4]]'s and a stack of [[16/13]] above five [[6/5]]'s. Alternatively, it is the amount by which [[27/25]] exceeds a stack of [[25/24]], [[49/48]], and [[65/64]]. In terms of [[superparticular]] commas, it is the difference between [[4096/4095]] and [[4375/4374]]. | |||
It also appears as the difference between several non-superparticular comma pairs: | |||
* [[15625/15552]] and [[640/637]] | |||
* [[325/324]] and [[6144/6125]] | |||
* [[729/728]] and [[65625/65536]] | |||
It is tempered out in [[hemikleismic]], [[vulture]], [[pontiac]], [[abigail]], [[ennealimmal]], and [[alphatrillium]] temperaments, as well as by [[46edo|46]], [[50edo|50]], [[53edo|53]], [[68edo|68]], [[103edo|103]], [[121edo|121]], [[171edo|171]], [[217edo|217]], [[224edo|224]], [[270edo|270]], [[441edo|441]], [[494edo|494]], [[643edo|643]], [[814edo|814]], [[935edo|935]], [[3125edo|3125]], [[3395edo|3395]], [[6079edo|6079]], [[8539edo|8539]], [[11664edo|11664]], and [[16808edo]]. | |||
[[ | Its name potentially comes from ponti ['''ponti'''ac] + gai [abi'''gai'''l] + limma [from Greek ''λεῖμμα,'' the remnant]. Thus, it is the tiny remnant that is tempered out in pontiac and abigail. | ||
[[Category:Commas named by combining multiple temperament names]] | |||