The language LaTeX has very few rules. It is not what you see is what you get, but rather command driven. While this may not seem as convenient intially, it is a remarkably efficient approach to typesetting the complex formulae typically found in mathematics. The implicit commands of importance are:
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There is a short sample file illustrating an elementary application of the the use of LaTeX to produce a document. To process the file, obtain it, then execute, tar xvzf sample.tar.gz. To produce a docuement, type
To preview the document, type