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 is written from left to right. When changing direction it is not mirrored. The word that U+039E forms with similar adjacent characters prevents a line break inside it. The glyph can be confused with 5 other glyphs.
The Wikipedia has the following information about this codepoint:
Xi ( ZY or (K)SY; uppercase Ξ, lowercase ξ; Greek: ξι) is the fourteenth letter of the Greek alphabet, representing the voiceless consonant cluster [ks]. Its name is pronounced [ksi] in Modern Greek. In the system of Greek numerals, it has a value of 60. Xi was derived from the Phoenician letter samekh .
Xi is distinct from the letter chi, which gave its form to the Latin letter X.
Representations
System
Representation (click value to copy)
Nº
926
UTF-8
CE 9E
UTF-16
03 9E
UTF-32
00 00 03 9E
URL-Quoted
%CE%9E
HTML hex reference
Ξ
Wrong windows-1252 Mojibake
Ξ
HTML named entity
Ξ
Encoding: BIG5 (hex bytes)
A3 51
Encoding: BIG5HKSCS (hex bytes)
A3 51
Encoding: CP737 (hex bytes)
8D
Encoding: CP869 (hex bytes)
BD
Encoding: CP875 (hex bytes)
55
Encoding: CP932 (hex bytes)
83 AC
Encoding: CP949 (hex bytes)
A5 CE
Encoding: CP950 (hex bytes)
A3 51
Encoding: CP1253 (hex bytes)
CE
Encoding: EUC_JP (hex bytes)
A6 AE
Encoding: EUC_JIS_2004 (hex bytes)
A6 AE
Encoding: EUC_JISX0213 (hex bytes)
A6 AE
Encoding: EUC_KR (hex bytes)
A5 CE
Encoding: GB2312 (hex bytes)
A6 AE
Encoding: GBK (hex bytes)
A6 AE
Encoding: GB18030 (hex bytes)
A6 AE
Encoding: HZ (hex bytes)
7E 7B 26 2E 7E 7D
Encoding: ISO2022_JP (hex bytes)
1B 24 42 26 2E 1B 28 42
Encoding: ISO2022_JP_1 (hex bytes)
1B 24 42 26 2E 1B 28 42
Encoding: ISO2022_JP_2 (hex bytes)
1B 24 42 26 2E 1B 28 42
Encoding: ISO2022_JP_2004 (hex bytes)
1B 24 42 26 2E 1B 28 42
Encoding: ISO2022_JP_3 (hex bytes)
1B 24 42 26 2E 1B 28 42
Encoding: ISO2022_JP_EXT (hex bytes)
1B 24 42 26 2E 1B 28 42
Encoding: ISO2022_KR (hex bytes)
1B 24 29 43 0E 25 4E 0F
Encoding: ISO8859_7 (hex bytes)
CE
Encoding: JOHAB (hex bytes)
DB 5E
Encoding: MAC_GREEK (hex bytes)
A5
Encoding: SHIFT_JIS (hex bytes)
83 AC
Encoding: SHIFT_JIS_2004 (hex bytes)
83 AC
Encoding: SHIFT_JISX0213 (hex bytes)
83 AC
Encoding: CP875 (hex bytes)
55
LATEX
\Xi
Adobe Glyph List
Xi
digraph
C*
RFC 5137
\u'039E'
Bash and Zsh inside echo -e
\u039E
C and C++
\u039E
C#
\u039E
CSS
\00039E
Excel
=UNICHAR(926)
Go
\u039E
JavaScript
\u039E
Modern JavaScript since ES6
\u{39e}
JSON
\u039E
Java
\u039E
Lua
\u{39E}
Matlab
char(926)
Perl
"\x{39E}"
PHP
\u{39e}
PostgreSQL
U&'\039E'
PowerShell
`u{39E}
Python
\u039E
Ruby
\u{39e}
Rust
\u{39e}
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