416/405: Difference between revisions

From Xenharmonic Wiki
Jump to navigation Jump to search
BudjarnLambeth (talk | contribs)
Named comma
BudjarnLambeth (talk | contribs)
m Remove name
Line 5: Line 5:
}}
}}


'''[[416/405]]''', the '''darkfrond comma''' is a 13-limit [[medium comma]]. It is the amount by which [[13/10]] exceeds [[81/64]], as well as the amount by which [[15/13]] falls short of [[32/27]].
'''[[416/405]]''' is a 13-limit [[medium comma]]. It is the amount by which [[13/10]] exceeds [[81/64]], as well as the amount by which [[15/13]] falls short of [[32/27]].
 
== Etymology ==
It is named after [https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&id=416405 NCBI taxa #416405] - the red palm mite. The red palm mite is invasive in the Americas. Entomologist Ronald Ochoa said of the arrival of the red palm mite: "this invasion represents the biggest mite explosion ever observed in the Americas". This imagery of devious little mites hiding in the fronds of a palm tree being shipped across the world inspired the name "darkfrond".

Revision as of 06:00, 15 October 2024

Interval information
Ratio 416/405
Factorization 25 × 3-4 × 5-1 × 13
Monzo [5 -4 -1 0 0 1
Size in cents 46.39394¢
Name Darkfrond comma
Color name 3og2, thogu 2nd
FJS name [math]\displaystyle{ \text{d2}^{13}_{5} }[/math]
Special properties reduced
Tenney height (log2 nd) 17.3622
Weil height (log2 max(n, d)) 17.4009
Wilson height (sopfr(nd)) 40
Comma size medium
Open this interval in xen-calc

416/405 is a 13-limit medium comma. It is the amount by which 13/10 exceeds 81/64, as well as the amount by which 15/13 falls short of 32/27.