Changes

An '''exclamation mark''' or '''exclamation point''' ('''!''') is used at the end of a [[sentence]] to express surprise, disgust, admiration, etc., or to add emphasis to a command. In formal writing, however, it is rarely used.

An '''exclamation mark''' or '''exclamation point''' ('''!''') is used at the end of a [[sentence]] to express surprise, [[disgusting|disgust]], admiration, etc., or to add emphasis to a command. In formal writing, however, it is rarely used.

In [[C]] and similar computer programming languages, it is used to represent "logical not" and in a pair with an equals sign (=) to represent ''is not equal to'', e.g. {{tt|1=if (a != b)}} means ''if a is not equal to b''.<ref>[http://cermics.enpc.fr/~ts/C/CONCEPT/expressions.html C Operators/Expressions].</ref>

In [[C]] and similar computer programming languages, it is used to represent "logical not" and in a pair with an equals sign (=) to represent ''is not equal to'', e.g. {{tt|1=if (a != b)}} means ''if a is not equal to b''.<ref>[http://cermics.enpc.fr/~ts/C/CONCEPT/expressions.html C Operators/Expressions].</ref>

==Additional Reading==

==Additional Reading==

* Eats, Shoots and Leaves: The Zero Tolerance Approach to Punctuation; Truss, Lynne, 2003, Gotham Books

* Truss, Lynne. ''Eats, Shoots and Leaves: The Zero Tolerance Approach to Punctuation''.  2003, Gotham Books.

==External Links==

==External Links==