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LaTeX is a document markup language and document preparation system for the TeX typesetting program. Within the typesetting system, its name is styled as . The term LaTeX refers only to the language in which documents are written, not to the editor used to write those documents. In order to create a document in LaTeX, a .tex file must be created using some form of text editor. While most text editors can be used to create a LaTeX document, a number of editors have been created specifically for working with LaTeX. LaTeX is widely used in academia. As a primary or intermediate format (translating DocBook and other XML-based formats to PDF), LaTeX is used because of the high quality of typesetting achievable by TeX. (Excerpt from <a href="http://en.wikipedia.org/wiki/LaTeX">Wikipedia article: LaTeX</a>)