: Unicode character recognition.

Unicode character information

Digit three

Displayed on your computer as: 3
(if the character is not rendered properly, you may not have the appropriate fonts)

Unicode name: Digit three
Codepoint (hexadecimal): 0x0033
Codepoint (decimal): 51
In unicode block: Basic Latin

Html entities:

3 or 3

Character input:

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

WindowsHold down Alt and press + on the numeric keyboard. Type: 0033 and release Alt. A registry key needs to be enabled for this to work. See Unicode input (wikipedia) for more details.
Linux: Hold down Crtl and ⇧ Shift and type U0033. Now press ↵ Enter and release Crtl and ⇧ Shift.

Other Infos:

General category: Nd (Decimal_Number): A decimal digit.
Bidirectional class is: EN (European_Number): Any ASCII digit or Eastern Arabic-Indic digit.
Canocial combining class is: 0 (Not_Reordered): Spacing and enclosing marks; also many vowel and consonant signs, even if nonspacing.