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Pack pac -- prolog/misc/latex.pl
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 latex_math(+Ext:text, +X:obj, -Y:obj) is det
Open the file whose directory, base, and extention are given in X.
 latexit(M:atom, +X:obj, -Y:obj) is det
Latex it with mode M. Necessary information is in X.
 latexit(X, X) is det
Latex the current buffer content, and preview it.