public bool ApproximateMatch(object obj)
{
var eqGoal = obj as EqGoal;
if (eqGoal != null)
{
if (Rhs == null)
{
return(Lhs.Equals(eqGoal.Lhs));
}
bool isNum1 = LogicSharp.IsNumeric(Rhs);
bool isNum2 = LogicSharp.IsNumeric(eqGoal.Rhs);
bool result;
if (isNum1 && isNum2)
{
result = LogicSharp.NumericApproximateEqual(Rhs, eqGoal.Rhs);
}
else
{
result = Rhs.Equals(eqGoal.Rhs);
}
return(Lhs.Equals(eqGoal.Lhs) && result);
}
var eq = obj as Equation;
if (eq != null)
{
if (Rhs == null)
{
return(Lhs.Equals(eq.Lhs));
}
bool isNum1 = LogicSharp.IsNumeric(Rhs);
bool isNum2 = LogicSharp.IsNumeric(eq.Rhs);
bool result;
if (isNum1 && isNum2)
{
result = LogicSharp.NumericApproximateEqual(Rhs, eq.Rhs);
}
else
{
result = Rhs.Equals(eq.Rhs);
}
if (eq.Lhs == null)
{
return(false);
}
return(Lhs.ToString().Equals(eq.Lhs.ToString()) && result);
}
return(false);
}