U+1D700 "𝜀" Mathematical Italic Small Epsilon Unicode Character

U+1D700 "𝜀" Mathematical Italic Small Epsilon is a typographic variant of the standard Greek letter epsilon, designed specifically for use in mathematical and scientific notation. It belongs to the "Mathematical Alphanumeric Symbols" block, which provides distinct italic forms of letters to prevent confusion between variables and ordinary text. This character is commonly employed to represent small positive quantities in calculus and analysis, most famously in the epsilon-delta definition of limits. Its italic style helps distinguish it from the standard Greek epsilon used in non mathematical contexts, ensuring clarity in complex formulas and academic writing.

General Properties

Code Point	U+1D700
Version Added	3.1
Name	Mathematical Italic Small Epsilon
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+03B5 Greek Small Letter Epsilon

Encodings

HTML Decimal Encoding	𝜀
HTML Hex Encoding	𝜀
UTF-8 Encoding	0xF0 0x9D 0x9C 0x80
UTF-16 Encoding	0xD835 0xDF00
UTF-32 Encoding	0x0001D700
C/C++/Java Escape	\ud835\udf00

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