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cs.CG2014★ 3 cited
The Convex Configurations of "Sei Shonagon Chie no Ita" and Other Dissection Puzzles
Eli Fox-Epstein, Ryuhei Uehara
The tangram and Sei Shonagon Chie no Ita are popular dissection puzzles consisting of seven pieces. Each puzzle can be formed by identifying edges from sixteen identical right isos…
cs.CG2014
Diffuse Reflection Radius in a Simple Polygon
Eli Fox-Epstein, Csaba Tóth, Andrew Winslow
It is shown that every simple polygon in general position with walls can be illuminated from a single point light source after at most diffuse refl…