U+1D53C "𝔼" Mathematical Double-Struck Capital E Unicode Character

U+1D53C "𝔼" Mathematical Double-Struck Capital E is a stylized letter from the Mathematical Alphanumeric Symbols block, designed to resemble a bold or blackboard bold capital E, commonly used in mathematics to denote the expected value operator in probability theory and statistics, as well as Euclidean space or the set of even integers in some contexts. This character provides a distinct visual representation that helps differentiate it from standard Latin letters, aiding clarity in mathematical notation. It is encoded in Unicode to support advanced typesetting in digital documents and mathematical software, ensuring consistent display across different platforms and fonts.

General Properties

Code Point	U+1D53C
Version Added	3.1
Name	Mathematical Double-Struck Capital E
Block	Mathematical Alphanumeric Symbols
General Category	Uppercase Letter
Canonical Combining Class	Not Reordered
Bidirectional Class	Left To Right
Decomposition Type	Font
Decomposition Mapping	"E" U+0045 Latin Capital Letter E

Encodings

HTML Decimal Encoding	𝔼
HTML Hex Encoding	𝔼
UTF-8 Encoding	0xF0 0x9D 0x94 0xBC
UTF-16 Encoding	0xD835 0xDD3C
UTF-32 Encoding	0x0001D53C
C/C++/Java Escape	\ud835\udd3c

Unicode Properties

NFC Quick Check	Yes
NFD Quick Check	Yes
Numeric Type	None
Numeric Value	NaN
Line Break	Alphabetic
Uppercase	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	Upper