FeynCalc manual (development version)

Loading the package

See also

Overview.

Getting started

To load FeynCalc 9 or newer run

<<FeynCalc`

in your Mathematica session. Notice that once FeynCalc has been loaded, it cannot be “reloaded” again. You need to restart the kernel first.

Add-ons

Extensions such FeynHelpers, FeynOnium, FeynArts loader, PHI etc. are loaded by adding the corresponding text strings to the global variable $LoadAddOns. This variable must be set before loading FeynCalc. For example

$LoadAddOns={"FeynArts","FeynHelpers"};
<<FeynCalc`

Startup messages

To suppress the package startup messages you can set the global variable $FeynCalcStartupMessages to False before loading FeynCalc. For example

$FeynCalcStartupMessages=False;
<<FeynCalc`