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Feyn: a Metafont for Feynman diagrams
-------------------------------------
-Version 0.3.1.
-
-This describes the font `feyn', which can be used to produce relatively
-simple Feynman diagrams within equations in a LaTeX document.
-
-The other Feynman diagram package which exists is Thorsten Ohl's
-`feynmf/feynmp' package. That works by creating Metafont or MetaPost
-figures using a preprocessor. It's more general than this package,
-but is at its best when creating relatively large diagrams, for
-figures. In contrast, the present system consists of a
-carefully-designed font with which you can write simple diagrams,
-within equations or within text, in a size matching the surrounding
-text size.
-
-
-Status
-------
-
-The font, and this associated style file, should be regarded as
-beta software at present. The propagators and vertices which are
-implemented are those which _I_ needed. I'd be delighted to
-add more if folk feel they would be useful.
+Version 0.3.3.
+
+This package is intended to produce relatively simple Feynman diagrams, for
+example within equations.
+
+This package differs from Thorsten Ohl's feynmf/feynmp package.
+FeynMP works by creating Metafont or MetaPost figures using a
+preprocessor. It's more general than this package, but is at its best
+when creating relatively large diagrams, for figures. In contrast,
+the present system consists of a carefully-designed font with which
+you can easily write simple diagrams, within equations or within text,
+in a size matching the surrounding text size.
+
+The propagators and vertices which are implemented are those which
+seem to appear most often in non-figure displays (the practical
+definition of `appear most often' is `which I wanted' and `which people
+asked me for'). I have no current plans to extend the package
+further, but I'm willing add other features if you can make a case for
+them, and they fit within the package's remit of 'diagrams for use in
+equations'.
+
+The package is on CTAN, and is included in TeXLive but not, as far as
+I'm aware, teTeX. The arXiv started using TeXLive 2008 in summer
+2008 (I understand), so it should be available there from that date.
+
+There is further documentation, plus numerous examples, in the package
+documentation (feyn.pdf).
See the package's home page on the web: http://purl.org/nxg/dist/feyn