U+1D459 "𝑙" Mathematical Italic Small L Unicode Character

U+1D459 "𝑙" Mathematical Italic Small L is a specialized typographic symbol used primarily in mathematical and scientific notation to represent variables, constants, or parameters, most commonly denoting length, inductance, or the Laguerre polynomial. It belongs to the Mathematical Alphanumeric Symbols block, a range of characters designed to provide unambiguous italic letterforms distinct from regular text, preventing confusion with the similar-looking numeral one or the lowercase letter l in standard fonts. This character supports precise formatting in technical documents, equations, and academic papers where a clear visual distinction between mathematical variables and plain text is essential.

General Properties

Code Point	U+1D459
Version Added	3.1
Name	Mathematical Italic Small L
Block	Mathematical Alphanumeric Symbols
General Category	Lowercase Letter
Canonical Combining Class	Not Reordered
Bidirectional Class	Left To Right
Decomposition Type	Font
Decomposition Mapping	"l" U+006C Latin Small Letter L

Encodings

HTML Decimal Encoding	𝑙
HTML Hex Encoding	𝑙
UTF-8 Encoding	0xF0 0x9D 0x91 0x99
UTF-16 Encoding	0xD835 0xDC59
UTF-32 Encoding	0x0001D459
C/C++/Java Escape	\ud835\udc59

Unicode Properties

NFC Quick Check	Yes
NFD Quick Check	Yes
Numeric Type	None
Numeric Value	NaN
Line Break	Alphabetic
Lowercase	Yes
Cased	Yes
Changes When NFKC Casefolded	Yes
NFKC Casefold	"l" U+006C Latin Small Letter L
NFKC Simple Casefold	"l" U+006C Latin Small Letter L
Script	Common
Script Extensions	Common
Indic Syllabic Category	Other
ID Start	Yes
XID Start	Yes
ID Continue	Yes
XID Continue	Yes
Alphabetic	Yes
Math	Yes
Other Math	Yes
Vertical Orientation	Rotated
Grapheme Base	Yes
Grapheme Cluster Break	Other
Word Break	Alphabetic letter
Sentence Break	Lower