Scheme comma: Difference between revisions

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BudjarnLambeth (talk | contribs)
Original namer on Discord (Jerdle) renamed it: "Speaking of bad names, I named a comma the skeetsma. While it was simply a derivative of "keema" and "schisma" with the t added to reduce confusion, and "skeet shooting" is a perfectly respectable word, "skeet" has other slang meanings. As such, I propose renaming it to "scheme comma""
Jerdle (talk | contribs)
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The '''scheme comma''' is a [[7-limit]] [[unnoticeable comma]]. It is equal to the difference between the [[Pythagorean comma]] and the keema ([[875/864]]). This makes it a ''keemic schisma''. It is also equal to the difference between the schisma ([[32805/32768]]) and the ragisma ([[4375/4374]]).
The '''scheme comma''' is a [[7-limit]] [[unnoticeable comma]]. It is equal to the difference between the [[Pythagorean comma]] and the keema ([[875/864]]). This makes it a ''keemic schisma'', from which the name ''scheme'' derives. It is also equal to the difference between the schisma ([[32805/32768]]) and the ragisma ([[4375/4374]]).


[[Category:Commas named for the intervals they stack]]
[[Category:Commas named for the intervals they stack]]

Latest revision as of 01:54, 20 October 2025

Interval information
Ratio 14348907/14336000
Factorization 2-14 × 315 × 5-3 × 7-1
Monzo [-14 15 -3 -1
Size in cents 1.557965¢
Name scheme comma
Color name LLrg3-2, Lalarutrigu comma
FJS name [math]\displaystyle{ \text{m}{-2}_{5,5,5,7} }[/math]
Special properties reduced
Tenney norm (log2 nd) 47.5476
Weil norm (log2 max(n, d)) 47.5489
Wilson norm (sopfr(nd)) 95
Comma size unnoticeable
Open this interval in xen-calc

The scheme comma is a 7-limit unnoticeable comma. It is equal to the difference between the Pythagorean comma and the keema (875/864). This makes it a keemic schisma, from which the name scheme derives. It is also equal to the difference between the schisma (32805/32768) and the ragisma (4375/4374).