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I need to know (for publication reasons) which are the features of LaTeX2e and the differences between LaTeX2e and normal LaTeX.

On the other hand I'm working with LyX. I have no problems in converting my .lyx files to (compilable) .tex files but...had I any problem in getting a LaTeX2e file with convert command of my LyX?

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LaTeX2e is normal LaTeX. –  daleif Sep 6 '12 at 8:39
    
Ah...ok. But then...why the different names for both? –  Lola Rodocrosita Sep 6 '12 at 8:55
    
2e is the version number, the previous version was 2.09 but 2e came out in 1993 (as I recall) so it was a while ago. –  David Carlisle Sep 6 '12 at 9:02
    
Welcome to TeX.sx! Usually, we don't put a greeting or a "thank you" in our posts. While this might seem strange at first, it is not a sign of lack of politeness, but rather part of our trying to keep everything very concise. Upvoting is the preferred way here to say "thank you" to users who helped you. –  henrique Sep 21 '12 at 11:46
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2 Answers

  • LaTeX is a document markup language and document preparation system for the TeX typesetting system.
  • 2e is the name of current LaTeX version.
  • You can use a LaTeX file in LyX using import option.
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Just what is LaTeX?

• LaTeX is a comprehensive set of markup commands used with the powerful typesetting program TeX for the preparation of a wide variety of documents, from scientific articles, reports, to complex books.

• LaTeX is based on Donald E. Knuth's TeX typesetting language or certain extensions. LaTeX was first developed in 1985 by Leslie Lamport, and is now being maintained and developed by the LaTeX3 Project.

LATEX2e"

The enormous popularity of LATEX and its expansion into fields for which it was not originally intended, together with improvements in computer technology, especially dealing with cheap but powerful laser printers, had created a diversity of formats bearing the LATEX label. In an effort to re-establish a genuine, improved standard, the LATEX3 Project was set up in 1989 by Leslie Lamport, Frank Mittelbach, Chris Rowley, and Rainer Sch¨opf. Their goal was to construct an optimized and efficient set of basic commands complemented by various packages to add specific functionality as needed.

As the name of the project implies, its aim is to achieve a version 3 for LATEX. However, since that is the long-term goal, a first step towards it was the release of LATEX2e" in mid-1994 together with the publication of the second edition of Lamport’s basic manual (Lamport, 1994) and of an additional book (Goossens et al., 1994) describing many of the extension packages available and LATEX programming in the new system. Since then, two further books have appeared, Goossens et al. (1997) dealing with the inclusion of graphics and color, and Goossens and Rahtz (1999) explaining how LATEX may be used with the World Wide Web. Both these topics are also dealt with in this Guide.

Initially updates to LATEX2e" were issued twice a year, in June and December, but it has now become so stable that since 2000 the changes are released only once a year, nominally in June.

LATEX2e" is now the standard version, and LATEX 2.09 is considered obsolete, although source files intended for the older version may still be processed with the newer one. In this book, unless otherwise indicated, ‘LATEX’ will always mean LATEX2e".

To Read more about LaTex. Here's the link

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Could you mark some of the text as a quote so we can tell what part is your answer and what part is quoted? –  ℝaphink Sep 21 '12 at 13:01
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