What is a fractorial function in visual basic?

Answer 1

In Visual Basic, a factorial function is a mathematical function that calculates the product of all positive integers up to a given number ( n ). It is typically defined using a recursive or iterative approach. For example, the factorial of ( n ) (denoted as ( n! )) can be implemented in code as follows:

Function Factorial(n As Integer) As Long
    If n <= 1 Then
        Return 1
    Else
        Return n * Factorial(n - 1)
    End If
End Function

This function checks if ( n ) is less than or equal to 1 and returns 1; otherwise, it recursively multiplies ( n ) by the factorial of ( n - 1 ).