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joriki

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Name joriki
Member for 2 years
Seen May 23 at 10:33
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Location Berlin
Age 43
Apr
20
comment Optimal 8-vertex isoperimetric polyhedron?
I proved your assertion about the 5-vertex case in this math.SE post: math.stackexchange.com/questions/367287.
Mar
9
comment If you break a stick at two points chosen uniformly, the probability the three resulting sticks form a triangle is 1/4. Is there a “nice” proof of this fact?
@Qiaochu: The distances correspond to the barycentric coordinates of the point. More generally, choosing a point uniformly in a $k$-simplex corresponds to independently uniformly choosing $k$ points in the unit interval and using the resulting $k+1$ interval lengths as barycentric coordinates.