shapecatcher.com : Unicode character recognition.

Unicode character information

Minus-or-plus sign


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

Unicode name: Minus-or-plus sign
Alternative names: Codepoint (hexadecimal): 0x2213
Codepoint (decimal): 8723
In unicode block: Mathematical Operators

Html entities:

∓ or ∓

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: 2213 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 U2213. Now press ↵ Enter and release Ctrl and ⇧ Shift.

Other Infos:

General category: Sm (Math_Symbol): A symbol of primarily mathematical use.
Bidirectional class: ET (European_Terminator): A terminator in a numeric format context, includes currency signs.
Canonical combining class: 0 (Not_Reordered): Spacing and enclosing marks; also many vowel and consonant signs, even if nonspacing.