RosettaCodeData/Task/Multifactorial/FreeBASIC/multifactorial.basic

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' FB 1.05.0 Win64
Function multiFactorial (n As UInteger, degree As Integer) As UInteger
If n < 2 Then Return 1
Var result = n
For i As Integer = n - degree To 2 Step -degree
result *= i
Next
Return result
End Function
For degree As Integer = 1 To 5
Print "Degree"; degree; " => ";
For n As Integer = 1 To 10
Print multiFactorial(n, degree); " ";
Next n
Print
Next degree
Print
Print "Press any key to quit"
Sleep