public static GaNumMapUnilinearCoefSums RotorProductToCoefSumsMap(this GaNumFrame frame, GaNumMultivector rotorVersor) { return(frame .RotorProduct(rotorVersor, frame.BasisVectorIDs()) .ToOutermorphismDictionary() .ToCoefSumsMap(frame.VSpaceDimension, frame.VSpaceDimension)); }