undecimal
Sign in to saveAlso known as base 11, base 11 number system
Undecimal (also known as unodecimal, undenary, and the base 11 numeral system) is a positional numeral system that uses eleven as its base. While no known society counts by elevens, two are purported to have done so: the Māori (one of the two Polynesian peoples of New Zealand) and the Pañgwa (a Bantu-speaking people of Tanzania). The idea of counting by elevens remains of interest for its relation to a traditional method of tally-counting practiced in Polynesia.
Wikidata facts
- Instance of
- positional numeral system
- Followed by
- duodecimal
- Follows
- decimal
Show 1 more fact
- radix
- 11
Sources (1)
via Wikidata · CC0
~18 min read
Encyclopedic overview
11 sectionsContents
- Alleged use by the Māori
- Conant and Williams
- Lesson and Blosseville
- Relation to traditional counting
- Alleged use by the Pañgwa
- In the history of measurement
- In science and technology
- In popular fiction
- Examples
- See also
- References
Undecimal (also known as unodecimal, undenary, and the base 11 numeral system) is a positional numeral system that uses eleven as its base. While no known society counts by elevens, two are purported to have done so: the Māori (one of the two Polynesian peoples of New Zealand) and the Pañgwa (a Bantu-speaking people of Tanzania). The idea of counting by elevens remains of interest for its relation to a traditional method of tally-counting practiced in Polynesia.
During the French Revolution, undecimal was briefly considered as a possible basis for the reformed system of measurement. Today, undecimal numerals have applications in computer science, technology, and the International Standard Book Number system. They also occasionally feature in works of popular fiction.
Excerpted from Wikipedia’s “undecimal” article, available under the CC BY-SA 4.0 licence.