Feynman diagrams are the standard method for communicatingcomplicated high-energy physics calculations. FeynDiagram is a library of C++ routines that allows you to draw high-quality PostScript Feynman diagrams by writing a short C++ program to describe the diagram (ie. where the vertices and lines go). Knowledge of C++ is not necessary, but a C++ compiler is. FeynDiagram may be freely downloaded and distributed. To see some examples, click on the Feynman diagramsin the header at the top of the page or browse thetutorial. | 
