This character is a Nonspacing Mark and inherits its script property from the preceding character. It is also used in the scripts Cherokee, Cyrillic, Latin, Tifinagh. The character is also known as hat.
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 Nonspacing Mark. When changing direction it is not mirrored. U+0302 prohibits a line break before it. The glyph can be confused with 16 other glyphs.
The Wikipedia has the following information about this codepoint:
The circumflex (◌̂) is a diacritic in the Latin and Greek scripts that is also used in the written forms of many languages and in various romanization and transcription schemes. It received its English name from Latin: circumflexus "bent around"—a translation of the Greek: περισπωμένη (perispōménē).
The circumflex in the Latin script is chevron-shaped (◌̂), while the Greek circumflex may be displayed either like a tilde (◌̃) or like an inverted breve (◌̑). For the most commonly encountered uses of the accent in the Latin alphabet, precomposed characters are available.
In English, the circumflex, like other diacritics, is sometimes retained on loanwords that used it in the original language (for example entrepôt, crème brûlée).
In mathematics and statistics, the circumflex diacritic is sometimes used to denote a function and is called a hat operator.
A free-standing version of the circumflex symbol, ^, is encoded in ASCII and Unicode and has become known as caret and has acquired special uses, particularly in computing and mathematics. The original caret, ‸, is used in proofreading to indicate insertion.
Representations
System
Representation (click value to copy)
Nº
770
UTF-8
CC 82
UTF-16
03 02
UTF-32
00 00 03 02
URL-Quoted
%CC%82
HTML hex reference
̂
Wrong windows-1252 Mojibake
◌̂
alias
hat
Encoding: EUC_JIS_2004 (hex bytes)
AB DF
Encoding: EUC_JISX0213 (hex bytes)
AB DF
Encoding: GB18030 (hex bytes)
81 30 BC 38
Encoding: ISO2022_JP_2004 (hex bytes)
1B 24 28 51 2B 5F 1B 28 42
Encoding: ISO2022_JP_3 (hex bytes)
1B 24 28 4F 2B 5F 1B 28 42
Encoding: SHIFT_JIS_2004 (hex bytes)
86 7E
Encoding: SHIFT_JISX0213 (hex bytes)
86 7E
LATEX
\^
AGL: Latin-4
uni0302
AGL: Latin-5
uni0302
Adobe Glyph List
circumflexcmb
RFC 5137
\u'0302'
Bash and Zsh inside echo -e
\u0302
C and C++
\u0302
C#
\u0302
CSS
\000302
Excel
=UNICHAR(770)
Go
\u0302
JavaScript
\u0302
Modern JavaScript since ES6
\u{302}
JSON
\u0302
Java
\u0302
Lua
\u{302}
Matlab
char(770)
Perl
"\x{302}"
PHP
\u{302}
PostgreSQL
U&'\0302'
PowerShell
`u{302}
Python
\u0302
Ruby
\u{302}
Rust
\u{302}
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