L2/15-165 Source

L2/15-165
Source: Mark Davis
Date: May 29, 2015
Subject: Numeric properties for 218A/B

The following 2 items are Other_Symbol.


			
			U+218A

( ↊ ) TURNED DIGIT TWO


				
				U+218B

( ↋ ) TURNED DIGIT THREE

I propose changing them to:

General Category = Other_Number

Numeric_Type = Numeric

Numeric_Value = 10 for 218A and 11 for 218B

====

The names list says that they are used as digits (in a base-12 system), as below. On that basis they should be General_Category=Other_Number. It appears that we have them as symbols because we didn't want to sanction their use. But we give a gazillion other things numeric values (http://unicode.org/cldr/utility/list-unicodeset.jsp?a=%5B%3ANo%3A%5D&g=nv); it doesn't mean that we use the clout of the Unicode Standard to promote any of them.

Turned digits
`218A`	↊	TURNED DIGIT TWO
		•	digit for 10 in some duodecimal systems
`218B`	↋	TURNED DIGIT THREE
		•	digit for 11 in some duodecimal systems
		→	`0190` Ɛ latin capital letter open e
		→	`2107` ℇ euler constant
		→	`A72B` ꜫ latin small letter tresillo

Turned digits