// Add looping 
// and invoking a function 

// if we do not declare any statements in global 
// scope, the "Execute" method of object 
// "Program" will not be successful.
// Instead select the "Factorial" function &
// click on "Execute Function", to invoke the 
// "Execute" method of object "Function".
// Use the UI to modify the value of variable 
// "Value" to 10 and execute "Factorial" to get
// an "Answer" of 3628800.

double Factorial(double Value)
{
   double Answer = 1;

   // Only use the absolute integer portion of the double
   Value = Abs(Int(Value));

   while (Value > 0)
      Answer *= Value--;
	
   return Answer;	
}

// Factorial(10.78);
// Uncomment the above line to invoke Factorial