I decided to find a way for finding maxima in the
5-paremter grain boundary distribution function.
From the computational point of view, it is
a very complex (and time-consuming) task.
With reduction of the investigated
domain to the fundamental zone, it can be done quite efficiently,
but the question arises if some information is missing.
At least we lose, the information about multiplicities of boundaries,
however, still most of the maxima should be found.