1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
|
<?xml version="1.0" encoding='utf-8'?>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Feyn font</title>
<link href="http://nxg.me.uk" rev="author"/>
<link type="text/css" rel="stylesheet" href="style.css"/>
</head>
<body>
<h1>Feyn font</h1>
<div class="abstract">
<p>A package of fonts for displaying Feynman diagrams.</p>
<p>Version 0.4.1, 2017 November 03.</p>
<p>Persistent URL: <code style='font-size: larger;'>http://purl.org/nxg/dist/feyn</code></p>
</div>
<p>This package is intended to produce relatively simple Feynman diagrams,
primarily for use within equations.</p>
<p><img class="smallimage" src="sample-two-loop.png" alt="Two-loop diagram"
/>This package differs from Thorsten Ohl’s
<code>feynmf/feynmp</code> package (at <a href="https://ctan.org/pkg/feynmf">CTAN</a>,
or see the
<a href="http://www.tex.ac.uk/cgi-bin/texfaq2html?label=drawFeyn" >TeX FAQ</a>).
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.</p>
<p><img class="smallimage" src="sample-massive.png" alt="Massive fermions"
/>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.</p>
<p>There is further documentation, plus numerous examples, in the
<a href="feyn.pdf" >package documentation</a>.</p>
<p><strong>[By the way, I have little idea of how many people actually
use this package. If you do use it, I’d be most grateful if you could
drop me a line just to say so]</strong></p>
<h2>Licence</h2>
<p>This software is copyright 1991, 1994, 2001-2, 2005, 2008-17, Norman Gray..
It is distributed under the terms of the <a href='LICENCE'>2-clause BSD Licence</a>.</p>
<h2>History</h2>
<dl>
<!-- @RELEASENOTES@ -->
<dt><span class='attention'>Version 0.4.1, 2017 November 3</span></dt>
<dd><p>The package is now licensed under the terms of the 2-clause BSD licence.</p>
<p>The only other changes from v0.4b2 are mild documentation adjustments
(sorry for the long delay between 0.4b2 and 0.4).</p>
<p>Version 0.4 was not widely released.</p></dd>
<dt>Version 0.4b3, 2013 April 12</dt>
<dd><ul>
<li>Changed <code>\below</code> to <code>\belowl</code>, and added
companion <code>\belowr</code>.</li>
<li>Documentation updates</li>
</ul></dd>
<dt>Version 0.4b2, 2011 April 9</dt>
<dd><p><img class="smallimage" src="sample-phi4.png" alt="Vertex"/> As
for version 0.4b1, but with the addition of <code>aV</code> for a
backward arrow (rarely used, but included for consistency; thanks to
Thomas Pruschke for the suggestion). Also added: <code>flo</code> for
the closed fermion loop, for phi^4 theory (plus <code>floV</code> and
<code>floA</code> for completeness; thanks to Hoang Nghia Nguyen for the suggestion;
the font should <em>now</em> be able to produce all scalar theory
diagrams).</p></dd>
<dt>Version 0.4b1, 2010 January 23</dt>
<dd><p>Addition of the extended-size `feynx' fonts, and the <code>\FEYN</code> macro
(thanks to Luciano Pandola for the suggestion).</p>
<p>Adjustments to the sizing of half-loops
(the half-loops are now squashed, though the quarter-loops aren't).
Added ghost loops; we can now do all the diagrams of 2-loop QCD.
The quarter-loop gluons now taper at both ends, so that two quarter-loops
are no longer the same as one half-loop.</p></dd>
<dt>...</dt>
<dd><a href='release-notes.html'>Earlier release notes</a> are available</dd>
</dl>
<h2>Download and installation</h2>
<p>The nominal distribution point for the Feyn package is CTAN,
under <a href="https://ctan.org/pkg/feyn">fonts/feyn</a>.</p>
<p>The feyn package is included in the
<a href='http://www.tug.org/texlive/'>TeXLive distribution</a>, so
you may have it on your machine already. If not, or if you need a
more up-to-date version, read on.</p>
<p>Since the package is on CTAN, it should be easily installed and
updated using the tools which support this in your TeX distribution.
For TeXLive, that's <a href='https://www.tug.org/texlive/tlmgr.html'>tlmgr</a>,
and for MikTeX see the
<a href='https://docs.miktex.org/faq/maintenance.html'>maintenance
section of the manual</a>.</p>
<h3>Doing the installation by hand</h3>
<p>...how thoroughly old-skool of you!</p>
<ol>
<li>Download either
<a href="feyn-0.4.1.tar.gz" >feyn-0.4.1.tar.gz</a>
or
<a href="feyn-0.4.1.zip" >feyn-0.4.1.zip</a>
and unpack it.</li>
<li>Run LaTeX on the file <code>feyn.ins</code> – this will unpack the
style file <code>feyn.sty</code> amongst other files. Place this
‘somewhere where TeX can find it’. Similarly, place the
<code>.mf</code> files somewhere where the font-generation mechanism
for your platform can find them. For example, in the TeXLive
distribution, the feyn <code>*.mf</code> files appear in the directory
<code>/usr/local/texlive/2008/texmf-dist/fonts/source/public/feyn/</code>
and the <code>feyn.sty</code> file in
<code>/usr/local/texlive/2008/texmf-dist/tex/latex/feyn/feyn.sty</code>,
so that if I were installing them ‘privately’, I would put them in
<code>/usr/local/texlive/texmf-local/fonts/source/local/feyn/</code>
and
<code>/usr/local/texlive/texmf-local/tex/latex/feyn/feyn.sty</code>.
With the teTeX and TeXLive Unix distributions, the output of
<code>kpsepath mf</code> shows the list of places where TeX will look
for Metafont source files. The font files <em>should</em> be
generated on the fly when you first refer to them. See also the
relevant discussion in the TeX FAQ about <a
href='http://www.tex.ac.uk/cgi-bin/texfaq2html?label=inst-wlcf'
>‘where LaTeX can find them’</a>.</li>
<li>Run LaTeX on the file <code>feyn.dtx</code> to obtain the
documentation, which is prebuilt in <code><a href="feyn.pdf"
>feyn.pdf</a></code> (this should
generate the font files as a side-effect).</li>
</ol>
<p>You should be able to find generic instructions for installing LaTeX files at
<a href='http://www.tex.ac.uk/cgi-bin/texfaq2html?label=installthings' >the TeX FAQ</a>.</p>
<div class="signature">
<a href="http://nxg.me.uk" >Norman Gray</a><br/>
2017 November 03
</div>
</body>
</html>
<!-- Local Variables: -->
<!-- mode: nxml -->
<!-- End: -->
|
