Example - Tan Function
' This sample program show the use of the Tan function
Sub Main ()
Dim Msg, Pi' Declare variables.
Pi = 4 * Atn(1)' Calculate Pi.
Msg = "Pi is equal to " & Pi
MsgBox Msg' Display results.
x = Tan(Pi/4)
MsgBoxx & " is the tangent of Pi/4"
End Sub