U+1D52F "𝔯" Mathematical Fraktur Small R Unicode Character

U+1D52F "𝔯" Mathematical Fraktur Small R is part of the Mathematical Alphanumeric Symbols block, designed to represent a decorative, blackletter style of the lowercase letter R for use in mathematical and scientific notation. It belongs to the Fraktur script, which originated in medieval German handwriting and later became a standard typeface for early printed books, but in modern contexts this character is primarily employed to denote specific mathematical entities, such as real numbers, rings, or ideals in abstract algebra and number theory. Its inclusion in Unicode ensures that this specialized symbol can be reliably displayed and transmitted across digital platforms without relying on font-specific or formatting workarounds.

General Properties

Code Point	U+1D52F
Version Added	3.1
Name	Mathematical Fraktur Small R
Block	Mathematical Alphanumeric Symbols
General Category	Lowercase Letter
Canonical Combining Class	Not Reordered
Bidirectional Class	Left To Right
Decomposition Type	Font
Decomposition Mapping	"r" U+0072 Latin Small Letter R

Encodings

HTML Decimal Encoding	𝔯
HTML Hex Encoding	𝔯
UTF-8 Encoding	0xF0 0x9D 0x94 0xAF
UTF-16 Encoding	0xD835 0xDD2F
UTF-32 Encoding	0x0001D52F
C/C++/Java Escape	\ud835\udd2f

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	"r" U+0072 Latin Small Letter R
NFKC Simple Casefold	"r" U+0072 Latin Small Letter R
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