This character is a Math Symbol and is commonly used, that is, in no specific script.
The glyph is a wide version of the glyph Glyph for U+002BPlus Sign. Accordingly, its width in East Asian Text is fullwidth. In bidirectional text it is written as European number separator from left to right. When changing direction it is not mirrored. U+FF0B offers a line break opportunity at its position, except in some numeric contexts.
The Wikipedia has the following information about this codepoint:
The plus sign (+) and the minus sign (−) are mathematical symbols used to denote positive and negative functions, respectively. In addition, + represents the operation of addition, which results in a sum, while − represents subtraction, resulting in a difference. Their use has been extended to many other meanings, more or less analogous. Plus and minus are Latin terms meaning "more" and "less", respectively.
The forms ⟨+⟩ and ⟨−⟩ are used in many countries around the word. Other designs include ⟨﬩⟩ for plus and ⟨⁒⟩ for minus.
Representations
System
Representation (click value to copy)
Nº
65291
UTF-8
EF BC 8B
UTF-16
FF 0B
UTF-32
00 00 FF 0B
URL-Quoted
%EF%BC%8B
HTML hex reference
+
Wrong windows-1252 Mojibake
+
Encoding: BIG5 (hex bytes)
A1 CF
Encoding: BIG5HKSCS (hex bytes)
A1 CF
Encoding: CP932 (hex bytes)
81 7B
Encoding: CP949 (hex bytes)
A3 AB
Encoding: CP950 (hex bytes)
A1 CF
Encoding: EUC_JP (hex bytes)
A1 DC
Encoding: EUC_JIS_2004 (hex bytes)
A1 DC
Encoding: EUC_JISX0213 (hex bytes)
A1 DC
Encoding: EUC_KR (hex bytes)
A3 AB
Encoding: GB2312 (hex bytes)
A3 AB
Encoding: GBK (hex bytes)
A3 AB
Encoding: GB18030 (hex bytes)
A3 AB
Encoding: HZ (hex bytes)
7E 7B 23 2B 7E 7D
Encoding: ISO2022_JP (hex bytes)
1B 24 42 21 5C 1B 28 42
Encoding: ISO2022_JP_1 (hex bytes)
1B 24 42 21 5C 1B 28 42
Encoding: ISO2022_JP_2 (hex bytes)
1B 24 42 21 5C 1B 28 42
Encoding: ISO2022_JP_2004 (hex bytes)
1B 24 42 21 5C 1B 28 42
Encoding: ISO2022_JP_3 (hex bytes)
1B 24 42 21 5C 1B 28 42
Encoding: ISO2022_JP_EXT (hex bytes)
1B 24 42 21 5C 1B 28 42
Encoding: ISO2022_KR (hex bytes)
1B 24 29 43 0E 23 2B 0F
Encoding: JOHAB (hex bytes)
DA 3B
Encoding: SHIFT_JIS (hex bytes)
81 7B
Encoding: SHIFT_JIS_2004 (hex bytes)
81 7B
Encoding: SHIFT_JISX0213 (hex bytes)
81 7B
Adobe Glyph List
plusmonospace
RFC 5137
\u'FF0B'
Bash and Zsh inside echo -e
\uFF0B
C and C++
\uFF0B
C#
\uFF0B
CSS
\00FF0B
Excel
=UNICHAR(65291)
Go
\uFF0B
JavaScript
\uFF0B
Modern JavaScript since ES6
\u{ff0b}
JSON
\uFF0B
Java
\uFF0B
Lua
\u{FF0B}
Matlab
char(65291)
Perl
"\x{FF0B}"
PHP
\u{ff0b}
PostgreSQL
U&'\FF0B'
PowerShell
`u{FF0B}
Python
\uFF0B
Ruby
\u{ff0b}
Rust
\u{ff0b}
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