public static IGaSymMultivector Compactify(this IGaSymMultivector mv, bool returnZeroMvAsNull = false)
{
if (DisableCompactifyMultivectors)
{
return(mv);
}
if (ReferenceEquals(mv, null))
{
return(null);
}
//Make sure this is not a temp multivector
if (mv.IsTemp)
{
mv = mv.ToMultivector();
}
//If it's zero return null or a zero term depending on returnZeroMvAsNull
if (mv.IsZero())
{
return(returnZeroMvAsNull
? null
: GaSymMultivectorTerm.CreateZero(mv.GaSpaceDimension));
}
//If it's a non-zero term return it as is
var termMv = mv as GaSymMultivectorTerm;
if (!ReferenceEquals(termMv, null))
{
return(termMv);
}
//It's a full multivector
var fullMv = (GaSymMultivector)mv;
//If it's not a term return it after simplification
if (!mv.IsTerm())
{
fullMv.Simplify();
return(fullMv);
}
//It's a full multivector containing a single term
var term = mv.NonZeroExprTerms.FirstOrDefault();
return(GaSymMultivectorTerm.CreateTerm(mv.GaSpaceDimension, term.Key, term.Value));
}
public static bool IsNullOrZero(this IGaSymMultivector mv)
{
return(ReferenceEquals(mv, null) || mv.IsZero());
}