/// <summary>
/// Tries to add A new MathItem to the exsisting problem
/// </summary>
/// <param name="newMathItem"></param>
/// <returns></returns>
private bool tryToAddNewMathItem(MathItem newMathItem)
{
if (newMathItem is MathValue)
{
return(TrytoAddnewValueItem(newMathItem as MathValue));
}
else
{
return(TrytoAddnewOperatorItem(newMathItem as MathOperator));
}
}
public bool AddToProblem(MathItem newMathItem)
{
if (Problem == null)
{
Problem = new List <MathItem>();
Problem.Add(newMathItem);
return(true);
}
else
{
return(tryToAddNewMathItem(newMathItem));
}
}