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Should we revitalize the Maya numerals? (English)
Math. Intell. 35, No. 4, 21-26 (2013).
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.
Reviewer: Leon Harkleroad (Bowdoinham)
Classification: A30 F30 F60
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