Counting Rod Numerals (Unicode block)

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Short description: Unicode character block
Counting Rod Numerals
RangeU+1D360..U+1D37F
(32 code points)
PlaneSMP
ScriptsCommon
Symbol setsCounting rod numbers; East Asian tally marks; European tally marks
Assigned25 code points
Unused7 reserved code points
Unicode version history
5.018 (+18)
11.025 (+7)
Note: [1][2]

Counting Rod Numerals is a Unicode block containing traditional Chinese counting rod symbols, which mathematicians used for calculation in ancient China, Japan, Korea, and Vietnam. The orientation of the Unicode characters follows Song dynasty convention, with digits represented as horizontal lines, and tens represented as vertical lines, which differs from Han dynasty practice which represented digits as vertical lines, and tens as horizontal lines.[3]

The block also contains five ideographic tally marks, based on the five strokes of the character 正, which are widely used in East Asia. There are also two characters for use in representing traditional European tally marks (only Tally Mark One and Tally Mark Five are encoded, with tally numbers two through four intended to be represented as a sequence of two through four Tally Mark One characters).

Block

History

The following Unicode-related documents record the purpose and process of defining specific characters in the Counting Rod Numerals block:

Version Final code points[lower-alpha 1] Count L2 ID WG2 ID Document
L2/04-156R2 Moore, Lisa (2004-08-13), UTC #99 Minutes 
L2/16-037 Anderson, Deborah; Whistler, Ken; McGowan, Rick; Pournader, Roozbeh; Glass, Andrew; Iancu, Laurențiu (2016-01-22), Recommendations to UTC #146 January 2016 on Script Proposals 
L2/16-046 Lunde, Ken; Miura, Daisuke (2016-01-27), Proposal to encode five ideographic tally marks 
L2/16-004 Moore, Lisa (2016-02-01), UTC #146 Minutes 
U+1D377..1D378 2 L2/15-328 Lunde, Ken; Miura, Daisuke (2015-11-30), Proposal to encode tally marks 
L2/16-037 Anderson, Deborah; Whistler, Ken; McGowan, Rick; Pournader, Roozbeh; Glass, Andrew; Iancu, Laurențiu (2016-01-22), Recommendations to UTC #146 January 2016 on Script Proposals 
L2/16-065 Lunde, Ken; Miura, Daisuke (2016-03-14), Proposal to encode two Western-style tally marks 
L2/16-156 Anderson, Deborah; Whistler, Ken; Pournader, Roozbeh; Glass, Andrew; Iancu, Laurențiu (2016-05-06), Recommendations to UTC #147 May 2016 on Script Proposals 
L2/16-121 Moore, Lisa (2016-05-20), UTC #147 Minutes 
L2/17-362 Moore, Lisa (2018-02-02), UTC #153 Minutes 
  1. ↑ Proposed code points and characters names may differ from final code points and names

See also

References

  1. ↑ "Unicode character database". The Unicode Standard. https://www.unicode.org/ucd/. Retrieved 2023-07-26. 
  2. ↑ "Enumerated Versions of The Unicode Standard". The Unicode Standard. https://www.unicode.org/versions/enumeratedversions.html. Retrieved 2023-07-26. 
  3. ↑ The Unicode Standard, Version 15.0 – Electronic edition, Unicode, Inc., 2022, pp. 869–870, https://www.unicode.org/versions/Unicode15.0.0/ch22.pdf#G12367 



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