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Factorial

 Method with 2 overloads

• Factorial​(PeterO.​Numbers.​EDecimal,​PeterO.​Numbers.​EContext)

  Summary

  Calculates the factorial of the specified EDecimal.
  
  This implementation uses
  Spouge's approximation to calculate the factorial for non-integer values.This involves calculating a series of constants that depend on the desired precision.
  Since this constant calculation is quite expensive (especially for higher precisions),
  the constants for a specific precision will be cached
  and subsequent calls to this method with the same precision will be much faster.It is therefore recommended to do one call to this method with the standard precision of your application during the startup phase
  and to avoid calling it with many different precisions.See: Wikipedia: Factorial - Extension of factorial to non-integer values of argument

  Parameter "x"

  The EDecimal

  Parameter "mathContext"

  The EContext used for the result

  Returns

  The factorial EDecimal

  Exception "ArgumentOutOfRangeException"

  Thrown when the precision of the mathContext is outside the int32 range

• Factorial​(System.​Int32)

  Summary

  Calculates the factorial of the specified integer argument.
  factorial = 1 * 2 * 3 * ... n

  Parameter "n"

  The Int32.

  Returns

  The factorial EInteger.

  Exception "ArgumentOutOfRangeException"

  Thrown if x < 0