This character is a Math Symbol and is commonly used, that is, in no specific script.
The glyph is not a composition. Its width in East Asian texts is determined by its context. It can be displayed wide or narrow. In bidirectional text it acts as Other Neutral. When changing direction it is mirrored into Contains As Member. If its East Asian Width is “narrow”, U+2208 forms a word with similar characters, which prevents a line break inside it. Otherwise it allows line breaks around it, except in some numeric contexts.
The CLDR project calls this character “element of” for use in screen reading software. It assigns these additional labels, e.g. for search in emoji pickers: contains, element, membership, of, set.
The Wikipedia has the following information about this codepoint:
In mathematics, an element (or member) of a set is any one of the distinct objects that belong to that set. For example, given a set called A containing the first four positive integers (), one could say that "3 is an element of A", expressed notationally as .
Representations
System
Representation (click value to copy)
Nº
8712
UTF-8
E2 88 88
UTF-16
22 08
UTF-32
00 00 22 08
URL-Quoted
%E2%88%88
HTML hex reference
∈
Wrong windows-1252 Mojibake
∈
HTML named entity
∈
HTML named entity
∈
HTML named entity
∈
HTML named entity
∈
Encoding: CP932 (hex bytes)
81 B8
Encoding: CP949 (hex bytes)
A1 F4
Encoding: EUC_JP (hex bytes)
A2 BA
Encoding: EUC_JIS_2004 (hex bytes)
A2 BA
Encoding: EUC_JISX0213 (hex bytes)
A2 BA
Encoding: EUC_KR (hex bytes)
A1 F4
Encoding: GB2312 (hex bytes)
A1 CA
Encoding: GBK (hex bytes)
A1 CA
Encoding: GB18030 (hex bytes)
A1 CA
Encoding: HZ (hex bytes)
7E 7B 21 4A 7E 7D
Encoding: ISO2022_JP (hex bytes)
1B 24 42 22 3A 1B 28 42
Encoding: ISO2022_JP_1 (hex bytes)
1B 24 42 22 3A 1B 28 42
Encoding: ISO2022_JP_2 (hex bytes)
1B 24 42 22 3A 1B 28 42
Encoding: ISO2022_JP_2004 (hex bytes)
1B 24 42 22 3A 1B 28 42
Encoding: ISO2022_JP_3 (hex bytes)
1B 24 42 22 3A 1B 28 42
Encoding: ISO2022_JP_EXT (hex bytes)
1B 24 42 22 3A 1B 28 42
Encoding: ISO2022_KR (hex bytes)
1B 24 29 43 0E 21 74 0F
Encoding: JOHAB (hex bytes)
D9 96
Encoding: SHIFT_JIS (hex bytes)
81 B8
Encoding: SHIFT_JIS_2004 (hex bytes)
81 B8
Encoding: SHIFT_JISX0213 (hex bytes)
81 B8
LATEX
\in
Adobe Glyph List
element
digraph
(-
RFC 5137
\u'2208'
Bash and Zsh inside echo -e
\u2208
C and C++
\u2208
C#
\u2208
CSS
\002208
Excel
=UNICHAR(8712)
Go
\u2208
JavaScript
\u2208
Modern JavaScript since ES6
\u{2208}
JSON
\u2208
Java
\u2208
Lua
\u{2208}
Matlab
char(8712)
Perl
"\x{2208}"
PHP
\u{2208}
PostgreSQL
U&'\2208'
PowerShell
`u{2208}
Python
\u2208
Ruby
\u{2208}
Rust
\u{2208}
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