shapecatcher.com : Unicode character recognition.

Unicode character information

Double-struck capital h


Displayed on your computer as: ℍ
(if the character is not rendered properly, you may not have the appropriate fonts)

Unicode name: Double-struck capital h
Alternative names: Codepoint (hexadecimal): 0x210D
Codepoint (decimal): 8461
In unicode block: Letterlike Symbols

Html entities:

ℍ or ℍ

Character input:

There is no universal input system for Unicode characters. But you can use the system-specific input methods below.

Windows: Hold down Alt and press + on the numeric keyboard. Type: 210D and release Alt. A registry key needs to be enabled for this to work. See Unicode input (wikipedia) for more details.
Linux: Hold down Ctrl and ⇧ Shift and type U210D. Now press ↵ Enter and release Ctrl and ⇧ Shift.

Other Infos:

General category: Lu (Uppercase_Letter): An uppercase letter.
Bidirectional class: L (Left_To_Right): Any strong left-to-right character.
Canonical combining class: 0 (Not_Reordered): Spacing and enclosing marks; also many vowel and consonant signs, even if nonspacing.