小数点

[5] 小数点 (decimal mark) は、整数部と小数部を区分する記号です。

[15] Standard ECMA-48 Control Functions for Coded Character Sets, Fifth Edition - June 1991, Reprinted June 1998, 2014-10-28T04:43:11.000Z, 2020-10-07T08:09:41.942Z http://www.ecma-international.org/publications/files/ECMA-ST/Ecma-048.pdf#page=19

4.2.29 Decimal mark
A graphic symbol, usually a FULL STOP or a COMMA, used to separate the fractional part of a decimal number from the integer part of that number.

[1]

小数点 (decimal mark)
数字の整数部分と小数部分とを分けるために使う図形で、通常は FULL STOP (ピリオド) 又は COMMA (コンマ)。 (JIS X 0211‐1994 4.2.28)

[2] Nari's Math page http://www.kumamotokokufu-h.ed.jp/kokufu/math/zakkan.html (名無しさん 2006-11-19 10:05:28 +00:00)

[3] Decimal mark - Wikipedia, the free encyclopedia ( (2013-04-13 01:08:34 +09:00 版)) http://en.wikipedia.org/wiki/Decimal_mark

[6] XQuery 3.1: An XML Query Language (2017-03-20 09:23:33 +09:00) https://www.w3.org/TR/2017/REC-xquery-31-20170321/#id-static-decimal-format-decimal-separator

[7] XML Path Language (XPath) 3.1 (2017-03-20 09:18:04 +09:00) https://www.w3.org/TR/2017/REC-xpath-31-20170321/#id-static-decimal-format-decimal-separator

[8] 京の桝蓋2 - 鉄蓋の殿堂 - お散歩 Photo Album, 2020-11-23T05:43:21.000Z https://osampo2001.sakura.ne.jp/futa/kyoto_osui2.html

マンホール「尺.5」 (1尺5寸)

[9] 数字の表記を考える, 2013-09-08T00:12:23.000Z, 2022-01-12T10:11:18.533Z http://www5d.biglobe.ne.jp/Jusl/Bunsyo/Suujihyouki.html#%EF%BC%90%EF%BC%92