Wikibooks

TeX/definition/control sequence

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Synopsis

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\<letter>[...<letter>]<non-letter>
\<non-letter>

Description

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A control sequence in TeX starts with an escape character, which is usually mapped to the backslash character '\'. This is either followed by letters to form a control word, or by a single non-letter to form a control symbol. Control words are terminated by a non-letter, if this happens to be a space character then it is not used to effect the spacing of the document.

Examples

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\par

will end a paragraph. This is equivalent to a blank line to TeX. 

\'e\`a

will typeset an acute accent over an e followed directly by a grave accent over an a: éà

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