bio  website  cs.smith.edu/~orourke 

location  Smith College, U.S.  
age  
visits  member for  4 years, 6 months 
seen  22 mins ago  
stats  profile views  16,173 
Professor of Computer Science; Professor of Mathematics; Dean.
1d

comment 
How large can you draw an island on a map?
A notion of a fat region is used in computational geometry: e.g., On fat partitioning, fat covering etc. 
2d

accepted  A perfect $(n,k)$ shuffle function 
2d

comment 
A perfect $(n,k)$ shuffle function
So for $k{=}4$ and $n{}1=11$, $4^2 \equiv 5$, $4^3 \equiv 9$, $4^4 \equiv 3$, $4^5 \equiv 1$. So $f(12,4)=5$. Nice! 
2d

awarded  ag.algebraicgeometry 
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asked  A perfect $(n,k)$ shuffle function 
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awarded  Popular Question 
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comment 
Calculating the “Belvedere Hull” of a Simple Planar Polygon
@ManfredWeis: I am aware that I didn't directly answer your question about the weakly visible hull. It may be in those references, either explicitly or implicitly. 
Nov 21 
revised 
Calculating the “Belvedere Hull” of a Simple Planar Polygon
3D citation 
Nov 21 
answered  Calculating the “Belvedere Hull” of a Simple Planar Polygon 
Nov 21 
comment 
The view from inside of a mirrored tetrahedron
@Michael: I used Mathematica for the tetrahedron image. 
Nov 21 
accepted  The view from inside of a mirrored tetrahedron 
Nov 21 
awarded  Nice Question 
Nov 21 
comment 
The view from inside of a mirrored tetrahedron
I assume the white lines are edges between faces? 
Nov 21 
comment 
The view from inside of a mirrored tetrahedron
Wow! Surprisingly complex and irregular. 
Nov 21 
comment 
The view from inside of a mirrored tetrahedron
Nice, Ryan!!! Try: global_settings { max_trace_level depth } . PovRay allows depth as large as $256$.

Nov 21 
revised 
The view from inside of a mirrored tetrahedron
added 265 characters in body; edited tags 
Nov 21 
asked  The view from inside of a mirrored tetrahedron 
Nov 19 
comment 
Robotics, Cryptography, and Genetics applications of Grothendieck's work?
@MarkGrant: Thanks, Mark, incorporated your correction. 
Nov 19 
revised 
Robotics, Cryptography, and Genetics applications of Grothendieck's work?
Mark Grant's comment incorporated. 
Nov 19 
comment 
Robotics, Cryptography, and Genetics applications of Grothendieck's work?
@LennartMeier: Definitely real robotics uses configuration spaces extensively, often via sampling. E.g., "Dynamic efficient collision checking method of robot arm paths in configuration space." But I do not know how much this type of work depends on topological considerations. So: good question. 