Factorial(int value)
{
if (value < 0)
{
throw new ArgumentOutOfRangeException("value", Properties.LocalStrings.ArgumentPositive);
}
return(FactorialAlgorithm.Factorial(value));
}
public IMathLib GetMathLib(FactorialAlgorithm factorialAlgorithm)
{
IFactorialStrategy strategy;
switch (factorialAlgorithm)
{
case FactorialAlgorithm.Functional:
strategy = new FunctionalFactorial();
break;
case FactorialAlgorithm.Recursional:
strategy = new RecursiveFactorial();
break;
default:
throw new NotSupportedException(string.Format(Resources.Err_FactorialAlgorithmNotSupported, factorialAlgorithm));
}
return(new MathLib(strategy));
}
