FCI[exp]
translates exp into the internal FeynCalc
(datatype-)representation.
FCI
is equivalent to FeynCalcInternal
.
Overview, FeynCalcExternal, FeynCalcInternal, FCE.
= {GA[\[Mu]], GAD[\[Rho]], GS[p], SP[p, q], MT[\[Alpha], \[Beta]], FV[p, \[Mu]]} ex
// StandardForm
ex
(*{GA[\[Mu]], GAD[\[Rho]], GS[p], SP[p, q], MT[\[Alpha], \[Beta]], FV[p, \[Mu]]}*)
// FCI ex
// FCI // StandardForm
ex
(*{DiracGamma[LorentzIndex[\[Mu]]], DiracGamma[LorentzIndex[\[Rho], D], D], DiracGamma[Momentum[p]], Pair[Momentum[p], Momentum[q]], Pair[LorentzIndex[\[Alpha]], LorentzIndex[\[Beta]]], Pair[LorentzIndex[\[Mu]], Momentum[p]]}*)
// FCE ex
// FCE // StandardForm
ex
(*{GA[\[Mu]], GAD[\[Rho]], GS[p], SP[p, q], MT[\[Alpha], \[Beta]], FV[p, \[Mu]]}*)