↑

Look up ↑ or up in Wiktionary, the free dictionary.

The symbol ↑, an upward pointing arrow, also called up arrow, uparrow, or upwards arrow, may refer to:

Notation

• ↑, a mathematical symbol for "undefined"
• ↑, a mathematical symbol for "approaching from below"
• ↑, a notation of Knuth's up-arrow notation for very large integers
• ↑, a mathematical game theory position Up
• ↑ or Sheffer stroke, the logical connective "not both" or NAND
• ↑, the APL function 'take'
• "Increased" (and similar meanings), in medical notation
• ↑, a chemical symbol for production of gas, which bubbles up.

Character representations

• ↑, upwards arrow, a Unicode arrow symbol
• ↑, ↑, a HTML or XML character entity
• ↑, codepoint 8A (hex) in EBCDIC Code page 293, used for writing APL
• ↑, the glyph for character 94 (decimal) in ASCII until 1967, when it was replaced by the caret (^).

See also

• Ꙟ, an archaic Romanian Cyrillic letter
• Arrow keys, on computer keyboards
• Arrow (disambiguation)
  • ↓ (disambiguation)
  • → (disambiguation)
  • ← (disambiguation)
• Up (disambiguation)