I have the following formula:
where i and j are both angles between 0° and 360° (they are essentialy vectors with this angle). The formula is inteded to provide a measure on how parallel or orthogonal the two vectors are to oneanother. The output is between 0° and 45°.
However, the way the formula is written it provides me 0° if i and j are 45° different from oneanother and it calulates 45 when the difference of the angle is 0 (or a multiple of 90).
Is there an easy math trick to ensure the output is what is intuitively excepted? i.e. difference in angle = formula output?