what's the problem pls help me

in bv mathematic fuction if i wan to use factorial so what is the keyword for factorial???

i use "prev = fact(n) / (fact(n - r))" , why i does not work???

instead of using "fact" what shold i use...

thank you for those who really can help me answer this...

thanks alot in advance 1st... :)

You can use this function.

VB Code:

Public Function Factorial(intNbr As Integer) As Long
 
    Dim counter As Integer
    Dim strAnswer As String
    
    counter = intNbr
    Factorial = counter
    Do While counter > 1
        counter = counter - 1
        Factorial = Factorial * counter
    Loop
 
End Function

or this one if you like recursive code better :)

VB Code:

Public Function Factoral(ByVal nNum As Integer) As Long
    If nNum = 1 Or nNum = 0 Then
        Factorial = 1
    Else
        Factorial = nNum * Factorial(nNum - 1)
    End If
End Function