U+1D5BE "𝖾" Mathematical Sans-Serif Small E Unicode Character

U+1D5BE "𝖾" Mathematical Sans-Serif Small E is a typographic variant of the lowercase letter "e" designed for use in mathematical and scientific notation, where distinguishing between serif and sans-serif forms can carry semantic meaning. It belongs to the Mathematical Alphanumeric Symbols block, which provides a range of stylized letters intended to prevent confusion with ordinary text when representing variables, constants, or operators. This specific character allows an author to denote a mathematical entity, such as the base of natural logarithms, in a sans-serif style while maintaining the unambiguous identity of the letter e within a technical document.

General Properties

Code Point	U+1D5BE
Version Added	3.1
Name	Mathematical Sans-Serif Small E
Block	Mathematical Alphanumeric Symbols
General Category	Lowercase Letter
Canonical Combining Class	Not Reordered
Bidirectional Class	Left To Right
Decomposition Type	Font
Decomposition Mapping	"e" U+0065 Latin Small Letter E

Encodings

HTML Decimal Encoding	𝖾
HTML Hex Encoding	𝖾
UTF-8 Encoding	0xF0 0x9D 0x96 0xBE
UTF-16 Encoding	0xD835 0xDDBE
UTF-32 Encoding	0x0001D5BE
C/C++/Java Escape	\ud835\uddbe

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	"e" U+0065 Latin Small Letter E
NFKC Simple Casefold	"e" U+0065 Latin Small Letter E
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