U+1D78D "𝞍" Mathematical Sans-Serif Bold Phi Symbol Unicode Character

U+1D78D "𝞍" Mathematical Sans-Serif Bold Phi Symbol is a typographic variant of the Greek letter phi, designed specifically for use in mathematical and scientific notation where a bold, sans-serif style is required. It belongs to the Mathematical Alphanumeric Symbols block, which provides distinct glyphs to avoid confusion with ordinary text characters. This particular phi symbol is often employed to represent functions, variables, or constants in fields such as physics, engineering, and mathematics, where its bold weight and sans-serif form help it stand out clearly in complex formulas or when integrated with other specialized typefaces.

General Properties

Code Point	U+1D78D
Version Added	3.1
Name	Mathematical Sans-Serif Bold Phi Symbol
Block	Mathematical Alphanumeric Symbols
General Category	Lowercase Letter
Canonical Combining Class	Not Reordered
Bidirectional Class	Left To Right
Decomposition Type	Font
Decomposition Mapping	"ϕ" U+03D5 Greek Phi Symbol

Encodings

HTML Decimal Encoding	𝞍
HTML Hex Encoding	𝞍
UTF-8 Encoding	0xF0 0x9D 0x9E 0x8D
UTF-16 Encoding	0xD835 0xDF8D
UTF-32 Encoding	0x0001D78D
C/C++/Java Escape	\ud835\udf8d

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	"φ" U+03C6 Greek Small Letter Phi
NFKC Simple Casefold	"φ" U+03C6 Greek Small Letter Phi
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