U+1D66A "𝙪" Mathematical Sans-Serif Bold Italic Small U Unicode Character

U+1D66A "𝙪" Mathematical Sans-Serif Bold Italic Small U is part of the Mathematical Alphanumeric Symbols block, designed to provide specific styled versions of standard Latin letters for use in mathematical and scientific notation. It combines a sans-serif typeface with bold weight and italic slant, allowing it to represent a variable or constant with distinct typographic meaning, particularly in contexts where formatting must be preserved in plaintext or where style conveys semantic value. This character allows mathematicians, scientists, and typesetters to clearly differentiate between similar-looking symbols, such as distinguishing (u) (serif) from (mathtt{u}) (sans-serif) in complex equations or computer science texts.

General Properties

Code Point	U+1D66A
Version Added	3.1
Name	Mathematical Sans-Serif Bold Italic Small U
Block	Mathematical Alphanumeric Symbols
General Category	Lowercase Letter
Canonical Combining Class	Not Reordered
Bidirectional Class	Left To Right
Decomposition Type	Font
Decomposition Mapping	"u" U+0075 Latin Small Letter U

Encodings

HTML Decimal Encoding	𝙪
HTML Hex Encoding	𝙪
UTF-8 Encoding	0xF0 0x9D 0x99 0xAA
UTF-16 Encoding	0xD835 0xDE6A
UTF-32 Encoding	0x0001D66A
C/C++/Java Escape	\ud835\ude6a

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	"u" U+0075 Latin Small Letter U
NFKC Simple Casefold	"u" U+0075 Latin Small Letter U
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