U+1D6D7 "𝛗" Mathematical Bold Small Phi Unicode Character

U+1D6D7 "𝛗" Mathematical Bold Small Phi is a typographic representation of the Greek letter phi in a bold font style, specifically designed for use in mathematical and scientific notation where distinct stylistic variants help differentiate between variables, constants, and other symbols. It belongs to the "Mathematical Alphanumeric Symbols" block, which was introduced to provide unambiguous glyphs for formulas, avoiding confusion with ordinary text characters. This bold small phi is often employed in fields such as physics, engineering, and mathematics to denote angles, the golden ratio, or other specialized quantities, and its bold weight emphasizes its role as a variable or constant in a structured equation system.

General Properties

Code Point	U+1D6D7
Version Added	3.1
Name	Mathematical Bold Small Phi
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+03C6 Greek Small Letter Phi

Encodings

HTML Decimal Encoding	𝛗
HTML Hex Encoding	𝛗
UTF-8 Encoding	0xF0 0x9D 0x9B 0x97
UTF-16 Encoding	0xD835 0xDED7
UTF-32 Encoding	0x0001D6D7
C/C++/Java Escape	\ud835\uded7

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