The glyph is a compatibility version of the glyph Glyph for U+03C1Greek Small Letter Rho. It has no designated width in East Asian texts. In bidirectional text it is written from left to right. When changing direction it is not mirrored. The word that U+03F1 forms with similar adjacent characters prevents a line break inside it. The glyph can be confused with one other glyph.
The Wikipedia has the following information about this codepoint:
Rho (; uppercase Ρ, lowercase ρ or ϱ; Greek: ρο or ρω) is the seventeenth letter of the Greek alphabet. In the system of Greek numerals it has a value of 100. It is derived from Phoenician letter res . Its uppercase form uses the same glyph, Ρ, as the distinct Latin letter P; the two letters have different Unicode encodings.
Representations
System
Representation (click value to copy)
Nº
1009
UTF-8
CF B1
UTF-16
03 F1
UTF-32
00 00 03 F1
URL-Quoted
%CF%B1
HTML hex reference
ϱ
Wrong windows-1252 Mojibake
ϱ
HTML named entity
ϱ
HTML named entity
ϱ
alias
tailed rho
Encoding: GB18030 (hex bytes)
81 30 CF 39
LATEX
\varrho
Adobe Glyph List
rhosymbolgreek
RFC 5137
\u'03F1'
Bash and Zsh inside echo -e
\u03F1
C and C++
\u03F1
C#
\u03F1
CSS
\0003F1
Excel
=UNICHAR(1009)
Go
\u03F1
JavaScript
\u03F1
Modern JavaScript since ES6
\u{3f1}
JSON
\u03F1
Java
\u03F1
Lua
\u{3F1}
Matlab
char(1009)
Perl
"\x{3F1}"
PHP
\u{3f1}
PostgreSQL
U&'\03F1'
PowerShell
`u{3F1}
Python
\u03F1
Ruby
\u{3f1}
Rust
\u{3f1}
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