![]() Music |
![]() Video |
![]() Movies |
![]() Chart |
![]() Show |
![]() |
Polygonal Hyperbolic Billiards (The Heidelberg Experimental Geometry Lab (HEGL)) View |
![]() |
Elliptic Billiards: The Jerabek Hyperbola and Circumbilliard of the Excentral Triangle (Dan Reznik) View |
![]() |
Outer billiard (WikiAudio) View |
![]() |
Family of Triangular Orbits in Elliptic Billiard: Orbit Feuerbach and Excentral Jerabek Hyperbolas (Dan Reznik) View |
![]() |
Elliptic Billiards: Triangular Orbits and Elliptic Loci of X1,X2,X3,X4,X5 and Euler Line (Dan Reznik) View |
![]() |
Elliptic Billiards: The N=4 self-intersecting orbit family and its tangential polygon (Dan Reznik) View |
![]() |
Poincaré's theorem for hyperbolic polygons (Esteban Gabory) View |
![]() |
Family of tangential triangles to N=3 bicentrics: locus of vertices and of X4 (Dan Reznik) View |
![]() |
Brocard Porism Isodynamic Pedals: equilaterals w/ invariant area ratio and circular centroidal locus (Dan Reznik) View |
![]() |
2:3 ideal triangles (Mark Shoemaker) View |