FeynCalc manual (development version)

UnDeclareAllCommutators

UnDeclareAllCommutators[] undeclares all user-defined commutators.

See also

Overview, FCCommutator, CommutatorExplicit, DeclareNonCommutative, DotSimplify.

Examples

DeclareNonCommutative[a, b, c, d] 
 
FCCommutator[a, b] = x1; 
 
FCCommutator[c, d] = x2; 
 
DotSimplify[a . b . c . d]

b.a.d.c+\text{x2} b.a+\text{x1} d.c+\text{x1} \;\text{x2}

UnDeclareAllCommutators[] 
 
DotSimplify[a . b . c . d]

a.b.c.d