This character is a Math Symbol and is mainly used in the Arabic 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+0606 forms with similar adjacent characters prevents a line break inside it.
The Wikipedia has the following information about this codepoint:
In mathematics, a cube root of a number x is a number y such that y3 = x. All nonzero real numbers have exactly one real cube root and a pair of complex conjugate cube roots, and all nonzero complex numbers have three distinct complex cube roots. For example, the real cube root of 8, denoted , is 2, because 23 = 8, while the other cube roots of 8 are and . The three cube roots of −27i are:
In some contexts, particularly when the number whose cube root is to be taken is a real number, one of the cube roots (in this particular case the real one) is referred to as the principal cube root, denoted with the radical sign The cube root is the inverse function of the cube function if considering only real numbers, but not if considering also complex numbers: although one has always the cube of a nonzero number has more than one complex cube root and its principal cube root may not be the number that was cubed. For example, , but
Representations
System
Representation (click value to copy)
Nº
1542
UTF-8
D8 86
UTF-16
06 06
UTF-32
00 00 06 06
URL-Quoted
%D8%86
HTML hex reference
؆
Wrong windows-1252 Mojibake
؆
Encoding: GB18030 (hex bytes)
81 30 FE 36
RFC 5137
\u'0606'
Bash and Zsh inside echo -e
\u0606
C and C++
\u0606
C#
\u0606
CSS
\000606
Excel
=UNICHAR(1542)
Go
\u0606
JavaScript
\u0606
Modern JavaScript since ES6
\u{606}
JSON
\u0606
Java
\u0606
Lua
\u{606}
Matlab
char(1542)
Perl
"\x{606}"
PHP
\u{606}
PostgreSQL
U&'\0606'
PowerShell
`u{606}
Python
\u0606
Ruby
\u{606}
Rust
\u{606}
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