public override Factor Copy()
{
SymbolicDot dot = base.Copy() as SymbolicDot;
dot.vectorNameA = this.vectorNameA;
dot.vectorNameB = this.vectorNameB;
return(dot);
}
public override Operand EvaluationStep(Context context)
{
if (factorList.Count == 0)
{
return(scalar);
}
Operand operand = base.EvaluationStep(context);
if (operand != null)
{
return(operand);
}
for (int i = 0; i < factorList.Count; i++)
{
Factor factor = factorList[i];
if (factor.exponent == 0)
{
factorList.RemoveAt(i);
return(this);
}
}
for (int i = 0; i < factorList.Count; i++)
{
SymbolicDot dot = factorList[i] as SymbolicDot;
if (dot != null && string.Compare(dot.vectorNameA, dot.vectorNameB) > 0)
{
string name = dot.vectorNameA;
dot.vectorNameA = dot.vectorNameB;
dot.vectorNameB = name;
return(this);
}
}
for (int i = 0; i < factorList.Count; i++)
{
Factor factorA = factorList[i];
for (int j = i + 1; j < factorList.Count; j++)
{
Factor factorB = factorList[j];
if (factorA.Matches(factorB))
{
factorList.RemoveAt(j);
factorA.exponent += factorB.exponent;
return(this);
}
}
}
for (int i = 0; i < factorList.Count - 1; i++)
{
Factor factorA = factorList[i];
Factor factorB = factorList[i + 1];
if (string.Compare(factorA.SortKey(), factorB.SortKey()) > 0)
{
factorList[i] = factorB;
factorList[i + 1] = factorA;
return(this);
}
}
return(null);
}