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This article is a list of standard proofreader's marks used to indicate and correct problems in a text. Marks come in two varieties, abbreviations and abstract symbols. These are usually handwritten on the paper containing the text.
Typographical symbols and punctuation marks are marks and symbols used in typography with a variety of purposes such as to help with legibility and accessibility, or to identify special cases. This list gives those most commonly encountered with Latin script. For a far more comprehensive list of symbols and signs, see List of Unicode characters.
The symbol has a variety of uses in programming and mathematics. The name "caret" arose from its visual similarity to the original proofreader's caret , ‸ , a mark used in proofreading to indicate where a punctuation mark, word, or phrase should be inserted into a document.
The caret symbol can be written just below the line of text for a punctuation mark at low line position, such as a comma, or just above the line of text as an inverted caret (U+02C7 ˇ CARON) for a character at a higher line position, such as an apostrophe, or in either position to indicate insertion of a letter, word or phrase; [3] the ...
The above notation soon changed to the letter K , an abbreviation for the Latin word caput, which translates as "head", i.e. it marks the head of a new thesis. [9] Eventually, to mark a new section, the Latin word capitulum, which translates as "little head", was used, and the letter C came to mark a new section, or chapter, [10] in 300 BC.
In linear logic, the question mark denotes one of the exponential modalities that control weakening and contraction. When placed above the relational symbol in an equation or inequality, a question-mark annotation means that the stated relation is "questioned". This can be used to ask whether the relation might be true or to point out the ...
The symbol is definitely not my invention — it appeared in popular magazines (not mathematical ones) before I adopted it, but, once again, I seem to have introduced it into mathematics. It is the symbol that sometimes looks like , and is used to indicate an end, usually the end of a proof.
A snippet of C code which prints "Hello, World!". The syntax of the C programming language is the set of rules governing writing of software in C. It is designed to allow for programs that are extremely terse, have a close relationship with the resulting object code, and yet provide relatively high-level data abstraction.