78/77
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Ratio
78/77
Factorization
2 × 3 × 7-1 × 11-1 × 13
Monzo
[1 1 0 -1 -1 1⟩
Size in cents
22.33881¢
Names
negustma,
tridecimal minor third comma
Color name
3o1ur1, tholuru unison,
Tholuru comma
FJS name
[math]\text{P1}^{13}_{7,11}[/math]
Special properties
superparticular,
reduced
Tenney height (log2 nd)
12.5522
Weil height (log2 max(n, d))
12.5708
Wilson height (sopfr(nd))
36
Harmonic entropy
(Shannon, [math]\sqrt{nd}[/math])
~4.02739 bits
Comma size
small
S-expression
S12 × S13
open this interval in xen-calc
| Interval information |
tridecimal minor third comma
Tholuru comma
reduced
(Shannon, [math]\sqrt{nd}[/math])
78/77, the negustma or tridecimal minor third comma, is a 13-limit no-fives comma of about 22.3¢. It is the difference between 13/11 and 7/6 as well as the difference between 13/7 and 11/6.