\input zb-basic
\input zb-matheduc
\iteman{ZMATH 2014e.00038}
\itemau{Bietenholz, Wolfgang}
\itemti{Should we revitalize the Maya numerals?}
\itemso{Math. Intell. 35, No. 4, 21-26 (2013).}
\itemab
This article presents divisibility tests, along the line of ``casting out nines'', in various numeration systems: base-10, -12, and -20, as well as the modified base-20 scheme used in the Mayan Long Count calendar. Since the latter incorporates factors of 3, besides 2 and 5, it often allows simpler tests than base-10. The author gives such qualitative comparisons a spurious precision by assigning to each numeration system a score, given to four (decimal) significant figures.
\itemrv{Leon Harkleroad (Bowdoinham)}
\itemcc{A30 F30 F60}
\itemut{Maya; long count calendar; numeration systems; divisibility tests}
\itemli{doi:10.1007/s00283-013-9388-2}
\end