[qupgtxbw] Ray tracing with conic sections

The Zen Photon Garden has a single point light source and partially transparent flat mirrors, everything in 2D. Other

[fjmokvwc] Packings, coverings, partitions

Pack N congruent discs into a shape.  Maximize disc area.Cover a shape with N overlapping congruent discs.  M

[tynstrls] Dissection of cube faces and edges

A cube has 6 faces and 12 edges, and 6 conveniently divides 12, so can a cube be covered by 6 congruent copies of an ob

[zrjyvnhq] General position perturbation map

Consider a set of points in general position, and one specific point in that set. Compute the connected region around

[nrzeevuv] Finite shapes

Some compact manifolds chosen for elegance and practicality.2DEquilateral triangle: 1 degree of freedom in shape, name