Description of functions for manipulating angles.

   Angles are normalized in an interval of width 2*PI. Most geom2d
   functions return results in the [0 2*pi] interval, but it can be
   convenient to consider the [-pi pi] interval as well. See the
   normalizeAngle function to switch between conventions.

   Angles are usually oriented. The default orientation is the CCW
   (Counter-Clockwise) orientation.

   See also:
   normalizeAngle, angleDiff, angleAbsDiff, angleSort
   angle2Points, angle3Points, vectorAngle, lineAngle, edgeAngle

Package: matgeom