> I am not sure the conversion helps. If the resulting Cartesian
coordinates
> tends to be zero, then the variability of the polar angle increases
> dramatically.

That is not an artifact of the calculation method, it is inherent in the
problem statement. What is the average direction of two compass
readings, one North and one South ?

Wouter van Ooijen

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Van Ooijen Technische Informatica: www.voti.nl
consultancy, development, PICmicro products
docent Hogeschool van Utrecht: www.voti.nl/hvu
 


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