Alpharabian schisma
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| Ratio | 618121839509504/617673396283947 |
| Factorization | 218 × 3-31 × 119 |
| Monzo | [18 -31 0 0 9⟩ |
| Size in cents | 1.2564545¢ |
| Name | Alpharabian schisma |
| FJS name | [math]\text{5d2}^{11,11,11,11,11,11,11,11,11}[/math] |
| Special properties | reduced |
| Tenney height (log2 nd) | 98.2687 |
| Weil height (log2 max(n, d)) | 98.2698 |
| Wilson height (sopfr(nd)) | 228 |
| Harmonic entropy (Shannon, [math]\sqrt{nd}[/math]) |
~1.21296 bits |
| Comma size | unnoticeable |
| open this interval in xen-calc | |
The Alpharabian schisma, is an 11-limit unnoticeable comma with a ratio of 618121839509504/617673396283947 and a monzo of [18 -31 0 0 9⟩. At roughly 1.26 cents in size, it is only just a little bit smaller than the better known schisma. It is the amount by which as stack of five rastmas falls short of an 8192/8019 inframinor second, as well as the amount by which a stack of three 1331/1296 semilimmic ultraprimes exceeds the Pythagorean kleisma.