1. Affine and Projective Geometry.

2. Affine und projektive Geometrie.

2. affine geometry - elementary geometry, Euclidean geometry, parabolic geometry - fractal geometry - non-Euclidean geometry - spherical geometry - analytical geometry, analytic geometry, coordinate geometry - plane geometry - solid geometry - descriptive geometry, projective geometry [Spéc.

affine geometry - euklidische Geometrie — elementary geometry, Euclidean geometry, parabolic geometry - fractal geometry - non-Euclidean geometry - spherical geometry - analytical geometry, analytic geometry, coordinate geometry - plane geometry - solid geometry - descriptive geometry, projective geometry [Spéc.