U+1D57E "𝕾" Mathematical Bold Fraktur Capital S Unicode Character

U+1D57E "𝕾" Mathematical Bold Fraktur Capital S is a stylized, bold version of the capital letter S in the Fraktur typeface, which is a distinctive blackletter script historically used in German and other European manuscripts and printed works. It belongs to the "Mathematical Alphanumeric Symbols" block of Unicode, designed for use in mathematical and scientific notation where a bold, ornate appearance is needed to denote specific variables, sets, or abstract entities, often in fields like set theory or algebra. The character provides a clear, unambiguous representation that stands apart from standard Latin letters, ensuring precision in technical texts.

General Properties

Code Point	U+1D57E
Version Added	3.1
Name	Mathematical Bold Fraktur Capital S
Block	Mathematical Alphanumeric Symbols
General Category	Uppercase Letter
Canonical Combining Class	Not Reordered
Bidirectional Class	Left To Right
Decomposition Type	Font
Decomposition Mapping	"S" U+0053 Latin Capital Letter S

Encodings

HTML Decimal Encoding	𝕾
HTML Hex Encoding	𝕾
UTF-8 Encoding	0xF0 0x9D 0x95 0xBE
UTF-16 Encoding	0xD835 0xDD7E
UTF-32 Encoding	0x0001D57E
C/C++/Java Escape	\ud835\udd7e

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	"s" U+0073 Latin Small Letter S
NFKC Simple Casefold	"s" U+0073 Latin Small Letter S
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