U+1D41A "𝐚" Mathematical Bold Small A Unicode Character

Unicode Version 17.0

𝐚

U+1D41A "𝐚" Mathematical Bold Small A is a specific glyph within the Unicode standard designed for use in mathematical and scientific notation, representing the lowercase letter "a" in a bold typeface. It belongs to the Mathematical Alphanumeric Symbols block, which provides distinct characters for letters and digits in various styles like bold, italic, and script, allowing authors to clearly differentiate between ordinary text and variables or constants in equations. This character is particularly useful for typesetting formulas in fields such as physics and engineering, where bold letters often denote vectors or matrices. Its inclusion in Unicode ensures that it can be reliably rendered across different platforms and software without relying on font-specific formatting tricks.

General Properties

Code Point U+1D41A
Version Added 3.1
Name Mathematical Bold Small A
Block Mathematical Alphanumeric Symbols
General Category Lowercase Letter
Canonical Combining Class Not Reordered
Bidirectional Class Left To Right
Decomposition Type Font
Decomposition Mapping "a" U+0061 Latin Small Letter A

Encodings

HTML Decimal Encoding 𝐚
HTML Hex Encoding 𝐚
UTF-8 Encoding 0xF0 0x9D 0x90 0x9A
UTF-16 Encoding 0xD835 0xDC1A
UTF-32 Encoding 0x0001D41A
C/C++/Java Escape \ud835\udc1a

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 "a" U+0061 Latin Small Letter A
NFKC Simple Casefold "a" U+0061 Latin Small Letter A
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