U+1D7C4 "𝟄" Mathematical Sans-Serif Bold Italic Epsilon Symbol Unicode Character

U+1D7C4 "𝟄" Mathematical Sans-Serif Bold Italic Epsilon Symbol is a typographic variant of the Greek letter epsilon, designed with a sans-serif, bold, and italic style for specialized use in mathematical and scientific notation. It belongs to the Mathematical Alphanumeric Symbols block, which provides distinct letterforms to avoid confusion with ordinary text and to convey specific meanings in formal contexts, such as denoting a small positive quantity, a set element, or a placeholder in equations. This character allows authors to maintain visual consistency in documents where sans-serif bold italic typefaces are required, ensuring that the epsilon stands out clearly among other symbols in complex formulas or proofs.

General Properties

Code Point	U+1D7C4
Version Added	3.1
Name	Mathematical Sans-Serif Bold Italic Epsilon Symbol
Block	Mathematical Alphanumeric Symbols
General Category	Lowercase Letter
Canonical Combining Class	Not Reordered
Bidirectional Class	Left To Right
Decomposition Type	Font
Decomposition Mapping	"ϵ" U+03F5 Greek Lunate Epsilon Symbol

Encodings

HTML Decimal Encoding	𝟄
HTML Hex Encoding	𝟄
UTF-8 Encoding	0xF0 0x9D 0x9F 0x84
UTF-16 Encoding	0xD835 0xDFC4
UTF-32 Encoding	0x0001D7C4
C/C++/Java Escape	\ud835\udfc4

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	"ε" U+03B5 Greek Small Letter Epsilon
NFKC Simple Casefold	"ε" U+03B5 Greek Small Letter Epsilon
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