U+1D407 "𝐇" Mathematical Bold Capital H Unicode Character

Unicode Version 17.0

𝐇

U+1D407 "𝐇" Mathematical Bold Capital H is a typographic variant of the standard uppercase H, specifically designed for use in mathematical and scientific notation to represent a bold vector, matrix, or set element, particularly in fields like linear algebra where it may denote a Hilbert space or a Hamiltonian operator. It belongs to the "Mathematical Alphanumeric Symbols" block, which provides distinct letter forms that prevent confusion with ordinary text and allow for precise semantic formatting in complex equations. Originally introduced in Unicode version 3.1 in 2001, it is typically rendered using specialized fonts that support mathematical typesetting, ensuring it displays as a bold, upright letter distinct from its italic or regular counterparts.

General Properties

Code Point U+1D407
Version Added 3.1
Name Mathematical Bold Capital H
Block Mathematical Alphanumeric Symbols
General Category Uppercase Letter
Canonical Combining Class Not Reordered
Bidirectional Class Left To Right
Decomposition Type Font
Decomposition Mapping "H" U+0048 Latin Capital Letter H

Encodings

HTML Decimal Encoding 𝐇
HTML Hex Encoding 𝐇
UTF-8 Encoding 0xF0 0x9D 0x90 0x87
UTF-16 Encoding 0xD835 0xDC07
UTF-32 Encoding 0x0001D407
C/C++/Java Escape \ud835\udc07

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 "h" U+0068 Latin Small Letter H
NFKC Simple Casefold "h" U+0068 Latin Small Letter H
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