public override double Calculate()
{
double operandValue = Operand.Calculate();
switch (Operation)
{
case "-": value = -operandValue; break;
case "sign":
if (operandValue > 0)
{
value = 1;
}
else if (operandValue < 0)
{
value = -1;
}
else
{
value = 0;
} break;
case "sqr": value = operandValue * operandValue; break;
case "sqrt": value = Math.Sqrt(operandValue); break;
default: throw new Exception("Неизвестный унарный оператор:" + Operation);
}
return(value);
}
public override double Calculate()
{
var operandResult = Operand.Calculate();
if (operandResult < 0)
{
throw new ArgumentOutOfRangeException();
}
return(Math.Sqrt(operandResult));
}
public override double Calculate()
{
return(Math.Pow(Operand.Calculate(), 2));
}
