U+1D58E "𝖎" Mathematical Bold Fraktur Small I Unicode Character

U+1D58E "𝖎" Mathematical Bold Fraktur Small I is a stylized letter in the Mathematical Alphanumeric Symbols block, designed for use in mathematical and scientific notation to represent the variable I in a bold, blackletter style. It is part of a larger set of mathematical Fraktur characters, which are often employed to denote ideals, Lie algebras, or special sets in advanced algebra, number theory, or physics. This specific glyph combines the decorative, angular features of Fraktur typography with a bold weight, distinguishing it from standard italic or script variants and ensuring clarity in complex formulas where visual differentiation between similar symbols is necessary.

General Properties

Code Point	U+1D58E
Version Added	3.1
Name	Mathematical Bold Fraktur Small I
Block	Mathematical Alphanumeric Symbols
General Category	Lowercase Letter
Canonical Combining Class	Not Reordered
Bidirectional Class	Left To Right
Decomposition Type	Font
Decomposition Mapping	"i" U+0069 Latin Small Letter I

Encodings

HTML Decimal Encoding	𝖎
HTML Hex Encoding	𝖎
UTF-8 Encoding	0xF0 0x9D 0x96 0x8E
UTF-16 Encoding	0xD835 0xDD8E
UTF-32 Encoding	0x0001D58E
C/C++/Java Escape	\ud835\udd8e

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	"i" U+0069 Latin Small Letter I
NFKC Simple Casefold	"i" U+0069 Latin Small Letter I
Script	Common
Script Extensions	Common
Indic Syllabic Category	Other
ID Start	Yes
XID Start	Yes
ID Continue	Yes
XID Continue	Yes
Soft Dotted	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