380edo
Theory
380edo notably provides the optimal patent val for the 2.3.11 subgroup neutral temperament. It has particularly accurate approximations of primes 23 and 29. Approximations of 7, 13, 17, and 19 are also very good.
Odd harmonics
| Harmonic | 3 | 5 | 7 | 9 | 11 | 13 | 15 | 17 | 19 | 21 | 23 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Error | Absolute (¢) | -0.90 | -1.05 | +0.65 | +1.35 | +1.31 | -0.53 | +1.20 | -0.74 | -0.67 | -0.25 | +0.15 |
| Relative (%) | -28.6 | -33.3 | +20.5 | +42.8 | +41.6 | -16.7 | +38.2 | -23.6 | -21.2 | -8.1 | +4.6 | |
| Steps (reduced) |
602 (222) |
882 (122) |
1067 (307) |
1205 (65) |
1315 (175) |
1406 (266) |
1485 (345) |
1553 (33) |
1614 (94) |
1669 (149) |
1719 (199) | |
Subsets and supersets
Since 380 factors into 22 × 5 × 19, 380edo has subset edos 2, 4, 5, 10, 19, 20, 38, 76, 95, and 190.