public static void Main(string[] args)
{
PrintMessage("Example with decimal values:");
DecimalFactory decimalFactory = DecimalFactory.GetInstance();
Value <decimal> V1 = new Value <decimal>(1.3M);
Value <decimal> V2 = new Value <decimal>(3.8M);
INode <decimal> AddOp = decimalFactory.GetAddOperation(V1, V2);
Console.WriteLine($"compute {AddOp} = {AddOp.Compute()}");
INode <decimal> SubOp = decimalFactory.GetSubtractOperation(V1, V2);
Console.WriteLine($"compute {SubOp} = {SubOp.Compute()}");
INode <decimal> MulOp = decimalFactory.GetMultiplyOperation(AddOp, SubOp);
Console.WriteLine($"compute {MulOp} = {MulOp.Compute()}");
PrintMessage("Calculator example with double values:");
User <double> user = new User <double>();
// user.SetValue(3.14);
user.Apply(Operation.ADD, 0.14);
user.Apply(Operation.ADD, 1.06);
user.Apply(Operation.MULTIPLY, 3.14);
PrintMessage("Check trigonometric evaluation:");
IFactory <double> doubleFactory = DoubleFactory.GetInstance();
INode <double> V = new Value <double>(Math.PI / 3.0);
INode <double> SinOp = (doubleFactory as ITrigonometryFactory <double>).GetSinOperation(V);
Console.WriteLine($"compute {SinOp} = {SinOp.Compute()}");
INode <double> Pow2SinOp = (doubleFactory as IFunctionFactory <double>).GetPow2Operation(SinOp);
Console.WriteLine($"compute {Pow2SinOp} = {Pow2SinOp.Compute()}");
INode <double> CosOp = (doubleFactory as ITrigonometryFactory <double>).GetCosOperation(V);
Console.WriteLine($"compute {CosOp} = {CosOp.Compute()}");
INode <double> Pow2CosOp = (doubleFactory as IFunctionFactory <double>).GetPow2Operation(CosOp);
Console.WriteLine($"compute {Pow2CosOp} = {Pow2CosOp.Compute()}");
INode <double> TrigAddOp = (doubleFactory as INumericFactory <double>).GetAddOperation(Pow2CosOp, Pow2SinOp);
Console.WriteLine($"compute {TrigAddOp} = {TrigAddOp.Compute()}");
}
public User()
{
_calculator = new Calculator <T>();
_history = new LinkedList <ICommand>();
_level = 0;
// Guess the correct factory from type
string typeName = typeof(T).Name.ToLower();
switch (typeName)
{
case "double":
_factory = DoubleFactory.GetInstance() as IFactory <T>;
break;
case "decimal":
_factory = DecimalFactory.GetInstance() as IFactory <T>;
break;
default:
throw new NotSupportedException($"No factory found for type name '{typeName}'");
}
}
