U+1D73E "𝜾" Mathematical Bold Italic Small Iota Unicode Character

U+1D73E "𝜾" Mathematical Bold Italic Small Iota is a typographic glyph designed for use in mathematical and scientific notation, representing the Greek letter iota in a bold and italic style. It belongs to the Mathematical Alphanumeric Symbols block and is intended to be clearly distinct from ordinary text, often employed to denote indices, imaginary units, or specific variables in formulas, especially in fields like physics, engineering, and computer science. This character allows authors to combine Greek letters with standard mathematical formatting without relying on font rendering or styling workarounds, ensuring consistent and precise communication in digital documents.

General Properties

Code Point	U+1D73E
Version Added	3.1
Name	Mathematical Bold Italic Small Iota
Block	Mathematical Alphanumeric Symbols
General Category	Lowercase Letter
Canonical Combining Class	Not Reordered
Bidirectional Class	Left To Right
Decomposition Type	Font
Decomposition Mapping	"ι" U+03B9 Greek Small Letter Iota

Encodings

HTML Decimal Encoding	𝜾
HTML Hex Encoding	𝜾
UTF-8 Encoding	0xF0 0x9D 0x9C 0xBE
UTF-16 Encoding	0xD835 0xDF3E
UTF-32 Encoding	0x0001D73E
C/C++/Java Escape	\ud835\udf3e

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	"ι" U+03B9 Greek Small Letter Iota
NFKC Simple Casefold	"ι" U+03B9 Greek Small Letter Iota
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