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Simple Factorial function for VB

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Here's a very simple function for VB (written in VB6) to calculate the factorial (!) of a number. Note that it is limited by the magnitude of the value which can be stored in the Long data type. (In fact, I believe it overflows at 13!)

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  1. Public Function Factorial(ByVal bNum As Byte) As Long
  2.   Dim I As Long
  3.   If bNum <= 0 Then Exit Function
  4.   Factorial = 1
  5.   For I = 1 To bNum
  6.     Factorial = Factorial * I
  7.   Next
  8. End Function
May 28 '07 #1
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