U+1D6BC "𝚼" Mathematical Bold Capital Upsilon Unicode Character

U+1D6BC "𝚼" Mathematical Bold Capital Upsilon is a typographic variant of the Greek capital letter Upsilon, styled in a bold weight and intended for use in mathematical and scientific notation to distinguish it from standard text. It belongs to the "Mathematical Alphanumeric Symbols" block, which provides distinct letterforms for variables, constants, and operators in formal writing. This character specifically represents the uppercase Upsilon in bold typeface, often used to denote a vector, a matrix element, or a specific mathematical concept such as the Cholesky factor or a particle in physics. Its encoding ensures semantic clarity in digital documents, allowing authors to preserve formatting intent across different platforms and fonts.

General Properties

Code Point	U+1D6BC
Version Added	3.1
Name	Mathematical Bold Capital Upsilon
Block	Mathematical Alphanumeric Symbols
General Category	Uppercase Letter
Canonical Combining Class	Not Reordered
Bidirectional Class	Left To Right
Decomposition Type	Font
Decomposition Mapping	"Υ" U+03A5 Greek Capital Letter Upsilon

Encodings

HTML Decimal Encoding	𝚼
HTML Hex Encoding	𝚼
UTF-8 Encoding	0xF0 0x9D 0x9A 0xBC
UTF-16 Encoding	0xD835 0xDEBC
UTF-32 Encoding	0x0001D6BC
C/C++/Java Escape	\ud835\udebc

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	"υ" U+03C5 Greek Small Letter Upsilon
NFKC Simple Casefold	"υ" U+03C5 Greek Small Letter Upsilon
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