Purpose
This method marks a user-defined function as volatile. A volatile function must be recalculated whenever calculation occurs in any cells on the worksheet. A nonvolatile function is recalculated only when the input variables change. This method has no effect if it's not inside a user-defined function used to calculate a worksheet cell.
Syntax
Volatile(Volatile)
Optional Parameters
Volatile
True to mark the function as volatile. False to mark the function as nonvolatile. The default value is True
