Some sheets about affine spaces and affine maps.
... more

wavemetrics.com/gallery-item/figures-hyperbolic-geometry-poincare-plane :: Figures of Hyperbolic Geometry in the Poincaré Plane :: Hyperbolic Geometry programmed in IGOR.

russischeprovinz.wordpress.com :: Janas blog. Stories from the everyday life of a German/Russian family in Stavropol.

byte-physics.de :: Thomas' company. Physics Software Development.