public void TestFactorial()
{
int n = 0;
double s = 0;
n = 0;
s = MathX.Factorial(n);
AssertEquals("Factorial ", 1, s);
n = 1;
s = MathX.Factorial(n);
AssertEquals("Factorial ", 1, s);
n = 10;
s = MathX.Factorial(n);
AssertEquals("Factorial ", 3628800, s);
n = 99;
s = MathX.Factorial(n);
AssertEquals("Factorial ", 9.33262154439E+155, s);
n = -1;
s = MathX.Factorial(n);
AssertEquals("Factorial ", Double.NaN, s);
n = Int32.MaxValue;
s = MathX.Factorial(n);
AssertEquals("Factorial ", Double.PositiveInfinity, s);
}
public override double Evaluate(double d)
{
return(MathX.Factorial((int)d));
}