U+1D54E "𝕎" Mathematical Double-Struck Capital W Unicode Character

U+1D54E "𝕎" Mathematical Double-Struck Capital W is a stylized version of the capital letter W, designed with a double-struck or blackboard bold typeface that is commonly used in mathematics and academic writing to denote specific sets or algebraic structures. This character belongs to the Mathematical Alphanumeric Symbols block and is often employed to represent the set of whole numbers, though it can also signify other mathematical objects like vector spaces or number systems in formal contexts. Its distinct bold, outlined appearance helps distinguish it from a standard italic or roman "W" in complex equations, ensuring clarity in mathematical notation and scientific documents.

General Properties

Code Point	U+1D54E
Version Added	3.1
Name	Mathematical Double-Struck Capital W
Block	Mathematical Alphanumeric Symbols
General Category	Uppercase Letter
Canonical Combining Class	Not Reordered
Bidirectional Class	Left To Right
Decomposition Type	Font
Decomposition Mapping	"W" U+0057 Latin Capital Letter W

Encodings

HTML Decimal Encoding	𝕎
HTML Hex Encoding	𝕎
UTF-8 Encoding	0xF0 0x9D 0x95 0x8E
UTF-16 Encoding	0xD835 0xDD4E
UTF-32 Encoding	0x0001D54E
C/C++/Java Escape	\ud835\udd4e

Unicode Properties

NFC Quick Check	Yes
NFD Quick Check	Yes
Numeric Type	None
Numeric Value	NaN
Line Break	Alphabetic
Uppercase	Yes
Cased	Yes
Changes When NFKC Casefolded	Yes
NFKC Casefold	"w" U+0077 Latin Small Letter W
NFKC Simple Casefold	"w" U+0077 Latin Small Letter W
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	Upper