Reusing UDF inputs

[ShelleyBelly]

Evenin everyone,

I've the below bit of code for a UDF which seams to have a problem. "arrco" seems to calculate correctly but "depco" does not. When i switch these two it is always the first that works and the second that does not.

Function CourseAlt(Lat1, Lon1, Lat2, Lon2, Lat3, Lon3, Sailmode2, Sailmode3)

        arrco = ArrCourse(Lat1, Lon1, Lat2, Lon2, Sailmode2)
        depco = DepCourse(Lat2, Lon2, Lat3, Lon3, Sailmode3)
         
        CourseAlt = CourseDiff(arrco, depco)


End Function

I believe it's something to do with reusing Lat2 and Lon2.

I'm sure it's an easy fix but I can't figure it, any help would greatly appreciated.

Cheers,

Tom

 

[shg]

If there is a problem, it's in the code for one or more of the three missing functions.