![[Graphics:Images/index_gr_1.gif]](Images/index_gr_1.gif){kind=small}
and is transformed into DiracGamma[Momentum[p]] by FeynCalcInternal (=FCI). GS[p,q, ...] is a short form for GS[p].GS[q]. ... .
GS[p] can be used as input for a 4-dimensional and is transformed into DiracGamma[Momentum[p]] by FeynCalcInternal (=FCI). GS[p,q, ...] is a short form for GS[p].GS[q]. ... .
See also: DiracGamma, DiracSlash, GA, GAD.
![[Graphics:Images/index_gr_2.gif]](Images/index_gr_2.gif)
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| The FeynCalc Book |  GluonVertex |  GSD |
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