391/390
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Ratio | 391/390 |
Factorization | 2^{-1} × 3^{-1} × 5^{-1} × 13^{-1} × 17 × 23 |
Monzo | [-1 -1 -1 0 0 -1 1 0 1⟩ |
Size in cents | 4.4333803¢ |
Name | minor naiadvicema |
Color name | 23o17o3ug2, twethosothugu 2nd, Twethosothugu comma |
FJS name | [math]\text{P1}^{17,23}_{5,13}[/math] |
Special properties | superparticular, reduced |
Tenney height (log_{2} nd) | 17.2184 |
Weil height (log_{2} max(n, d)) | 17.222 |
Wilson height (sopfr (nd)) | 63 |
Harmonic entropy (Shannon, [math]\sqrt{n\cdot d}[/math]) |
~2.48291 bits |
Comma size | small |
open this interval in xen-calc |
391/390, the minor naiadvicema is a 23-limit superparticular comma measuring about 4.43 cents. It forms the difference between 17/13 (septendecimal sub-fourth) and 30/23 (vicesimotertial semisixth).
Etymology
The name minor naiadvicema is contrast to the major naiadvicema, 300/299, measuring about 5.78¢, which is the difference between 13/10 and 30/23. 391/390 is smaller than 300/299 by a 23-limit unnoticeable comma, 9000/8993. The word naiadvicema was introduced by Xenllium in 2023. It is a contraction of naiadic vicesimotertial comma into a single word.