This character is a Other Symbol and is commonly used, that is, in no specific script.
The glyph is not a composition. It has no designated width in East Asian texts. In bidirectional text it acts as Other Neutral. When changing direction it is not mirrored. The word that U+23B7 forms with similar adjacent characters prevents a line break inside it.
The Wikipedia has the following information about this codepoint:
In mathematics, the radical symbol, radical sign, root symbol, radix, or surd is a symbol for the square root or higher-order root of a number. The square root of a number x is written as
while the nth root of x is written as
It is also used for other meanings in more advanced mathematics, such as the radical of an ideal.
In linguistics, the symbol is used to denote a root word.
Representations
System
Representation (click value to copy)
Nº
9143
UTF-8
E2 8E B7
UTF-16
23 B7
UTF-32
00 00 23 B7
URL-Quoted
%E2%8E%B7
HTML hex reference
⎷
Wrong windows-1252 Mojibake
⎷
Encoding: GB18030 (hex bytes)
81 36 F9 37
RFC 5137
\u'23B7'
Bash and Zsh inside echo -e
\u23B7
C and C++
\u23B7
C#
\u23B7
CSS
\0023B7
Excel
=UNICHAR(9143)
Go
\u23B7
JavaScript
\u23B7
Modern JavaScript since ES6
\u{23b7}
JSON
\u23B7
Java
\u23B7
Lua
\u{23B7}
Matlab
char(9143)
Perl
"\x{23B7}"
PHP
\u{23b7}
PostgreSQL
U&'\23B7'
PowerShell
`u{23B7}
Python
\u23B7
Ruby
\u{23b7}
Rust
\u{23b7}
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