U+1D558 "𝕘" Mathematical Double-Struck Small G Unicode Character

Unicode Version 17.0

𝕘

U+1D558 "𝕘" Mathematical Double-Struck Small G is a typographic symbol from the Mathematical Alphanumeric Symbols block, designed for use in formal mathematical and scientific notation to represent variables, constants, or abstract entities. Its double-struck style, characterized by thick, parallel vertical strokes, mimics the appearance of blackboard bold type traditionally written by hand to denote number sets, such as the integers or real numbers, but for a lowercase letter. In practice, this character allows mathematicians and researchers to clearly distinguish a specific variable g within complex equations or proofs, ensuring precision in digital and printed documents. As part of Unicode’s extensive mathematical repertoire, it supports consistent rendering across different platforms and software, aiding in the global communication of advanced mathematical ideas.

General Properties

Code Point U+1D558
Version Added 3.1
Name Mathematical Double-Struck Small G
Block Mathematical Alphanumeric Symbols
General Category Lowercase Letter
Canonical Combining Class Not Reordered
Bidirectional Class Left To Right
Decomposition Type Font
Decomposition Mapping "g" U+0067 Latin Small Letter G

Encodings

HTML Decimal Encoding 𝕘
HTML Hex Encoding 𝕘
UTF-8 Encoding 0xF0 0x9D 0x95 0x98
UTF-16 Encoding 0xD835 0xDD58
UTF-32 Encoding 0x0001D558
C/C++/Java Escape \ud835\udd58

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 "g" U+0067 Latin Small Letter G
NFKC Simple Casefold "g" U+0067 Latin Small Letter G
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