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+03BB forms with similar adjacent characters prevents a line break inside it. The glyph can be confused with 9 other glyphs.
The Wikipedia has the following information about this codepoint:
Lambda (; uppercase Λ, lowercase λ; Greek: λάμ(β)δα, lám(b)da) is the eleventh letter of the Greek alphabet, representing the voiced alveolar lateral approximant IPA:[l]. In the system of Greek numerals, lambda has a value of 30. Lambda is derived from the Phoenician Lamed. Lambda gave rise to the Latin L and the Cyrillic El (Л). The ancient grammarians and dramatists give evidence to the pronunciation as [laːbdaː] (λάβδα) in Classical Greek times. In Modern Greek, the name of the letter, Λάμδα, is pronounced [ˈlam.ða].
In early Greek alphabets, the shape and orientation of lambda varied. Most variants consisted of two straight strokes, one longer than the other, connected at their ends. The angle might be in the upper-left, lower-left ("Western" alphabets) or top ("Eastern" alphabets). Other variants had a vertical line with a horizontal or sloped stroke running to the right. With the general adoption of the Ionic alphabet, Greek settled on an angle at the top; the Romans put the angle at the lower-left.
The HTML 4 character entity references for the Greek capital and small letter lambda are Λ and λ respectively. The Unicode code points for lambda are U+039B and U+03BB.
Representations
System
Representation (click value to copy)
Nº
955
UTF-8
CE BB
UTF-16
03 BB
UTF-32
00 00 03 BB
URL-Quoted
%CE%BB
HTML hex reference
λ
Wrong windows-1252 Mojibake
λ
HTML named entity
λ
alias
lambda
Encoding: BIG5 (hex bytes)
A3 66
Encoding: BIG5HKSCS (hex bytes)
A3 66
Encoding: CP737 (hex bytes)
A2
Encoding: CP869 (hex bytes)
E5
Encoding: CP875 (hex bytes)
9E
Encoding: CP932 (hex bytes)
83 C9
Encoding: CP949 (hex bytes)
A5 EB
Encoding: CP950 (hex bytes)
A3 66
Encoding: CP1253 (hex bytes)
EB
Encoding: EUC_JP (hex bytes)
A6 CB
Encoding: EUC_JIS_2004 (hex bytes)
A6 CB
Encoding: EUC_JISX0213 (hex bytes)
A6 CB
Encoding: EUC_KR (hex bytes)
A5 EB
Encoding: GB2312 (hex bytes)
A6 CB
Encoding: GBK (hex bytes)
A6 CB
Encoding: GB18030 (hex bytes)
A6 CB
Encoding: HZ (hex bytes)
7E 7B 26 4B 7E 7D
Encoding: ISO2022_JP (hex bytes)
1B 24 42 26 4B 1B 28 42
Encoding: ISO2022_JP_1 (hex bytes)
1B 24 42 26 4B 1B 28 42
Encoding: ISO2022_JP_2 (hex bytes)
1B 24 42 26 4B 1B 28 42
Encoding: ISO2022_JP_2004 (hex bytes)
1B 24 42 26 4B 1B 28 42
Encoding: ISO2022_JP_3 (hex bytes)
1B 24 42 26 4B 1B 28 42
Encoding: ISO2022_JP_EXT (hex bytes)
1B 24 42 26 4B 1B 28 42
Encoding: ISO2022_KR (hex bytes)
1B 24 29 43 0E 25 6B 0F
Encoding: ISO8859_7 (hex bytes)
EB
Encoding: JOHAB (hex bytes)
DB 7B
Encoding: MAC_GREEK (hex bytes)
EC
Encoding: SHIFT_JIS (hex bytes)
83 C9
Encoding: SHIFT_JIS_2004 (hex bytes)
83 C9
Encoding: SHIFT_JISX0213 (hex bytes)
83 C9
Encoding: CP875 (hex bytes)
9E
LATEX
\lambda
AGL: Latin-5
lambda
Adobe Glyph List
lambda
digraph
l*
RFC 5137
\u'03BB'
Bash and Zsh inside echo -e
\u03BB
C and C++
\u03BB
C#
\u03BB
CSS
\0003BB
Excel
=UNICHAR(955)
Go
\u03BB
JavaScript
\u03BB
Modern JavaScript since ES6
\u{3bb}
JSON
\u03BB
Java
\u03BB
Lua
\u{3BB}
Matlab
char(955)
Perl
"\x{3BB}"
PHP
\u{3bb}
PostgreSQL
U&'\03BB'
PowerShell
`u{3BB}
Python
\u03BB
Ruby
\u{3bb}
Rust
\u{3bb}
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