main conics and projective geometry page
table of contents
The classical definition
Ideal points for the euclidean plane
Homogeneous coordinates for
R
P
^{2}
Tangents - a geometrical approach
A geometric approach to poles, polars and duality
An algebraic approach to poles, polars and duality
Conics as sections of a cone.
related pages
the projective group
perspectivities
the fundamental theorem
cross-ratio - a projective invariant
symmetries of a projective conic
appendices
Cabri conics menu
Cabri illustrations of classical theorems
CabriJava illustrations of classical theorems
Cinderella illustrations of classical theorems
Pascal's Theorem via Chasles' Theorem
main geometry page