U+1D562 "𝕢" Mathematical Double-Struck Small Q Unicode Character

Unicode Version 17.0

𝕢

U+1D562 "𝕢" Mathematical Double-Struck Small Q is a typographic symbol belonging to the Mathematical Alphanumeric Symbols block, designed to represent the lowercase letter "q" in a double struck or blackboard bold style, which is commonly used in mathematical notation to denote specific number sets, such as the rational numbers (ℚ) when capitalized, though the lowercase form may appear in algebraic contexts or as a variable. This character is part of a larger set of double struck letters that were encoded in Unicode to allow for clear, platform independent representation of mathematical expressions in digital text, distinguishing it from ordinary letters by its bold, open outline appearance. It is typically rendered in specialized mathematical fonts and is not intended for general prose, serving instead to maintain semantic precision in formal academic writing, programming, or scientific documents where standard italic or bold characters might cause ambiguity.

General Properties

Code Point U+1D562
Version Added 3.1
Name Mathematical Double-Struck Small Q
Block Mathematical Alphanumeric Symbols
General Category Lowercase Letter
Canonical Combining Class Not Reordered
Bidirectional Class Left To Right
Decomposition Type Font
Decomposition Mapping "q" U+0071 Latin Small Letter Q

Encodings

HTML Decimal Encoding 𝕢
HTML Hex Encoding 𝕢
UTF-8 Encoding 0xF0 0x9D 0x95 0xA2
UTF-16 Encoding 0xD835 0xDD62
UTF-32 Encoding 0x0001D562
C/C++/Java Escape \ud835\udd62

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 "q" U+0071 Latin Small Letter Q
NFKC Simple Casefold "q" U+0071 Latin Small Letter Q
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