Hi! I need some help with latex. I need to draw Feynman diagrams and it seems that the package feynmfm relies on Metafont, which I really don't even have the slightest idea as how to use it.(adsbygoogle = window.adsbygoogle || []).push({});

Anyway, I tried to find a good tutorial on the subject (metafont) but it looks like i will need some help since i still consider myself a newbie in latex.

I'm using the full installation of Miktex 2.6 on Texnicenter which I know has the packages already. Whenever I try to follow the commands for drawing a diagram like this:

\begin{verbatim}

\begin{fmffile}{decan}

\begin{fmfgraph*}(40,25)

\fmfleft{o3}

\fmfright{i1,o1,o2}

\fmf{fermion}{i1,v1}

\fmf{fermion}{o1,o2,o3}

\end{fmfgraph*} \end{fmffile}

\end{verbatim}

for the feynman graph of the neutron decay( Maybe I'm not doing the sintax right?) I get a single arrow all over my writing in the last paragraph and not even an error message.

It says that i have to somehow reprocess the file "decan.mf" and try again but that's my problem . i have no experience with metafont or something like that..like i said I'm almost illiterate in Tex/LAtex. I've used latex for my reports but until now, I only needed to type math formulas.

If there's another way to draw Feynman Diagrams, other than drawing it with some graphics application and pasting it, please let me know. All I need is to learn how to draw Feynman diagrams using some package since I don't want to overload my pdf with inserted graphics. Thanks in advance!

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# Feynman diagram latex

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