Major women's sport leagues in North America regional associations of U Sports: Canada West Universities Athletic Association, Ontario University Athletics, Réseau du sport étudiant du Québec, and Atlantic University Sport. After interconference playoffs have been played, eight teams compete for the Gladys Bean Memorial Trophy, awarded to the U Sports Women's Soccer Championship team. The regular season is eight to nine weeks long, depending on the conference, and, as of 2016, opens on the Labour Day weekend. Teams play between 13 and 16 regular season games, depending on conference or division, with teams typically playing a home-and-home series with every other team in their conference or division.
Delaunay triangulation a "flipping" technique. If two triangles do not meet the Delaunay condition, switching the common edge BD for the common edge AC produces two triangles that do meet the Delaunay condition: This operation is called a "flip", and can be generalised to three and higher dimensions. Many algorithms for computing Delaunay triangulations rely on fast operations for detecting when a point is within a triangle's circumcircle and an efficient data structure for storing triangles and edges. In two dimensions, one way to detect if point "D" lies in the circumcircle of "A", "B", "C" is to evaluate the determinant: When