This character is a Uppercase Letter and is commonly used, that is, in no specific script. The character is also known as Riemann Integral.
The glyph is a font version of the glyph Glyph for U+0052Latin Capital Letter R. It has no designated width in East Asian texts. In bidirectional text it is written from left to right. When changing direction it is not mirrored. The word that U+211B forms with similar adjacent characters prevents a line break inside it. The glyph can be confused with one other glyph.
The Wikipedia has the following information about this codepoint:
R, or r, is the eighteenth letter of the Latin alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide. Its name in English is ar (pronounced ), plural ars, or in Ireland or ().
The letter ⟨r⟩ is the eighth most common letter in English and the fourth-most common consonant, after ⟨t⟩, ⟨n⟩, and ⟨s⟩.
Representations
System
Representation (click value to copy)
Nº
8475
UTF-8
E2 84 9B
UTF-16
21 1B
UTF-32
00 00 21 1B
URL-Quoted
%E2%84%9B
HTML hex reference
ℛ
Wrong windows-1252 Mojibake
â„›
HTML named entity
ℛ
HTML named entity
ℛ
alias
Riemann Integral
Encoding: GB18030 (hex bytes)
81 36 BD 38
LATEX
\mathscr{R}
RFC 5137
\u'211B'
Bash and Zsh inside echo -e
\u211B
C and C++
\u211B
C#
\u211B
CSS
\00211B
Excel
=UNICHAR(8475)
Go
\u211B
JavaScript
\u211B
Modern JavaScript since ES6
\u{211b}
JSON
\u211B
Java
\u211B
Lua
\u{211B}
Matlab
char(8475)
Perl
"\x{211B}"
PHP
\u{211b}
PostgreSQL
U&'\211B'
PowerShell
`u{211B}
Python
\u211B
Ruby
\u{211b}
Rust
\u{211b}
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