public Expr this[int id] { get { List <Expr> coef; _termsTree.TryGetLeafValue((ulong)id, out coef); return (ReferenceEquals(coef, null) ? Expr.INT_ZERO : coef.Simplify()); } }
public override IGaSymMultivector this[int id1] { get { IGaSymMultivector mv; _basisBladeMaps.TryGetLeafValue((ulong)id1, out mv); return(mv ?? GaSymMultivectorTerm.CreateZero(TargetGaSpaceDimension)); } }