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Rob Pratt
NC, USA
Senior R&D Manager, SAS Institute Inc.
Ph.D. in Operations Research, The University of North Carolina at Chapel Hill
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Top Questions
12
votes
How to linearize membership in a finite set
modeling
linearization
asked Jul 9, 2021 at 14:27
or.stackexchange.com
7
votes
How can I strengthen a family of constraints in the presence of a clique constraint?
mixed-integer-programming
modeling
asked Apr 28, 2021 at 17:35
or.stackexchange.com
6
votes
Geometric logos
knowledge
geometry
asked Jul 18, 2020 at 21:57
puzzling.stackexchange.com
Top Answers
56
What is the optimal number of dice to roll a Yahtzee in one roll?
math.stackexchange.com
42
What is the closed form of the $f$ with $f(1)=1$, $f(2)=7$ and $f(n)=7f(n-1)-12f(n-2)$ ($n\ge 3$)?
math.stackexchange.com
39
What is the optimal number of dice to roll a Yahtzee in one roll?
mathoverflow.net
30
Checkmate 30 kings with rooks
puzzling.stackexchange.com
29
Social distancing in a 5x5 room
puzzling.stackexchange.com
26
Which heptomino is it obvious can't tile the plane?
puzzling.stackexchange.com
25
How to linearize the product of two binary variables?
or.stackexchange.com
25
What node does 11 point to?
puzzling.stackexchange.com
24
Is there a generating function for any finite sequence of random numbers?
math.stackexchange.com
24
A COVID-19 puzzle: How large a class do you need to fit 30 pupils?
puzzling.stackexchange.com
23
Can we arrange $\{1,...,16\}$ in $4\times 4$-grid so {products of rows} = {products of columns}?
math.stackexchange.com
22
Three queens and two rooks covering the chess board... again!
puzzling.stackexchange.com
22
A Rook's Territory in the Chessboard
puzzling.stackexchange.com
20
Listing all posets on 9 points?
mathoverflow.net
20
Is there way to solve this minesweeper without guessing?
puzzling.stackexchange.com
20
How to linearize membership in a finite set
or.stackexchange.com
20
How many ways can you find the word DIAMOND in this diamond?
puzzling.stackexchange.com
20
A rook's tour of the chessboard
puzzling.stackexchange.com
19
The Greenhouse Problem
puzzling.stackexchange.com
19
I Hate Traffic And So Do You
puzzling.stackexchange.com
18
Can the (famous) "Problem of Apollonius" be Considered as a "Constraint Optimization" Problem?
or.stackexchange.com
18
TSP with revenue maximization
or.stackexchange.com
18
How to fully tile an 8 by 8 square with Z-tetrominoes?
puzzling.stackexchange.com
17
Is there a Linear Programming Library that natively supports fractions instead of floating point arithmetic?
or.stackexchange.com
17
11 cyclists in a race
puzzling.stackexchange.com
16
Are there any math jokes told entirely with symbols?
math.stackexchange.com
16
Moving around a plane
puzzling.stackexchange.com
16
Expressing a chain of boolean ORs using ILP
or.stackexchange.com
16
Optimal search puzzle
mathoverflow.net
16
Prime lights out
puzzling.stackexchange.com
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