PyGeo: a dynamic geometry toolkit

u_points

points fixed or determined on the Riemann sphere

f uPoint() ...

factory function returns instance of a class representing fixed or determmined points of the Riemann sphere

constructors:
uPoint (upoint )
point of the Riemann sphere antipodal to the given point of the sphere
uPoint (zpoint )
point of the Riemann sphere stereographically projected from the given point of the complex plane
uPoint (ucricle,upoint )
point of the Riemann sphere inverse to the given point of the sphere with respect to the given spheric section of the sphere
uPoint (ucircle )
point of a spheric section of the Riemann sphere
uPoint (float,<float> )
uPoint (<theta = float> <,phi= float> )
point of the Riemann sphere at the given spherical coordinates, in radians

See the source for more information.