!!
Encyclopedia
‼ may refer to:
The double exclamation mark is present in Unicode
as the single character U+203C DOUBLE EXCLAMATION MARK (‼).
- A brilliant move in chess notation
- The double factorial operator in mathematics
- A "convert to Boolean" pseudo-operator in some computer languages
- This is through a computer type of double negativeDouble negativeA double negative occurs when two forms of negation are used in the same sentence. Multiple negation is the more general term referring to the occurrence of more than one negative in a clause....
, where its Boolean value is negated, then negated again, converting to the value to either true or false
- This is through a computer type of double negative
- An operator for getting the n-th element of a list in the programming language HaskellHaskell (programming language)Haskell is a standardized, general-purpose purely functional programming language, with non-strict semantics and strong static typing. It is named after logician Haskell Curry. In Haskell, "a function is a first-class citizen" of the programming language. As a functional programming language, the...
- A retroflex click, a family of click consonants found only in Juu languages of southern Africa and in the Damin ritual jargon of Australia
The double exclamation mark is present in Unicode
Unicode
Unicode is a computing industry standard for the consistent encoding, representation and handling of text expressed in most of the world's writing systems...
as the single character U+203C DOUBLE EXCLAMATION MARK (‼).