Crystallization

2013-12-31T06:58:43Z

2001:DA8:21C:8380:4CF8:9EBC:4092:90FC: /* Primary nucleation */

A '''check mark''' or '''tick''' is a mark ({{unicode|✓}}, {{unicode|✔}}, {{unicode|☑}}, etc.) used to indicate the concept "yes" (e.g., "yes; this has been verified", "yes; that is the correct answer", "yes; this has been completed", or "yes; this [item or option] applies to me"). The [[x mark]] is also sometimes used for this purpose (most notably on election [[Ballot|ballot papers]]), but otherwise usually indicates "no", incorrectness, or failure.

As a verb, to check (off) or tick (off), means to add such a mark. Printed forms, printed documents, and computer software (see [[Checkbox]]), commonly include squares in which to place check marks.

Possible etymologies include the Hindi "[http://en.wiktionary.org/wiki/ठीक ठीक]", 'ṭhīk' (accurate, acceptable), with "check" possibly being derived from the [[Bhojpuri]] word "चकाचक", 'fulsome, replete, zestful'.{{citation needed|date=January 2014}}

==International differences==
The check mark is a predominant affirmative symbol of convenience in the English-speaking world because of its instant and facile composition. In other countries, however, the mark is more complicated. In some countries (e.g., [[Finland]], [[Italy]], [[Japan]], [[Korea]], [[Norway]], and [[Sweden]]){{Citation needed|date=June 2009}}, the check mark can be used as an error mark, indicating "no" rather than "yes". For example, it is common in Swedish schools for a {{unicode|✓}} to indicate that an answer is incorrect (while "R", from the Swedish ''rätt'', i.e., "correct", is used to indicate that an answer is correct). In Finnish, {{unicode|✓}} stands for ''väärin'', i.e., "wrong", due to its similarity to a slanted v. (The opposite, "right", is marked with <math>\cdot \! / \! \cdot</math>, a slanted vertical line emphasized with two dots).

===Asian conventions===
In China, a check mark means "correct". A check mark placed in [[bracket]]s can indicate that a previously used or acceptable fact or definition is being investigated, usually for the purpose of expanding academic research.{{Citation needed|date=June 2009}} In Japan, an "[[marujirushi|O Mark]]" (in the appearance of a circle, Unicode symbol "◯"), also known as "丸印" (''marujirushi''), is used instead of a check mark to mean "yes"; this symbol is also used in Korea.{{Citation needed|date=June 2009}}

==Unicode==
The "Symbol, Other" category of [[Unicode]] provides various check marks:

* {{unichar|237B|NOT CHECK MARK}}
* {{unichar|2610|BALLOT BOX}}
* {{unichar|2611|BALLOT BOX WITH CHECK}}
* {{unichar|2705|WHITE HEAVY CHECK MARK}}
* {{unichar|2713|CHECK MARK}}
* {{unichar|2714|HEAVY CHECK MARK}}

==See also==
{{Commons|Category:Check marks}}
* [[Bracket]]
* [[Tally marks]]
* [[X mark]]

==External links==
* [http://www.fileformat.info/info/unicode/char/2713/index.htm Fileformat.info]

{{DEFAULTSORT:Tick (Check Mark)}}
[[Category:Pictograms]]

[[sv:Bock]]

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