editing disabled

88/63
|3 -2 0 -1 1>
578.582034 cents

88/63, the werckismic diminished fourth, is 441/440 (3.9 cents) below 7/5. It is 0.01 cent sharp of the 56edo diminished fourth of 27\56. It can arise in 11-limit scales as the interval from 9/8 to 11/7, or 14/11 to 16/9.