Mathematics
RobPratt's user avatar
RobPratt's user avatar
RobPratt's user avatar
RobPratt
  • Member for 4 years, 5 months
  • Last seen this week
  • NC, USA
Profile Activity
Stats
43,784
reputation
365k
reached
1,862
answers
0
questions
Communities
About
  • Senior R&D Manager, SAS Institute Inc.
  • Ph.D. in Operations Research, The University of North Carolina at Chapel Hill
Badges
View all badges
3
gold badges
21
silver badges
51
bronze badges
Top tags
View all tags
861
Score
457
Posts
25
Posts %
659
Score
499
Posts
27
Posts %
415
Score
348
Posts
19
Posts %
330
Score
163
Posts
9
Posts %
311
Score
164
Posts
9
Posts %
278
Score
212
Posts
11
Posts %
Top posts
View all questions and answers
All Questions Answers
Score Newest
answer
56
What is the optimal number of dice to roll a Yahtzee in one roll?
Feb 6, 2020
answer
40
What is the closed form of the $f$ with $f(1)=1$, $f(2)=7$ and $f(n)=7f(n-1)-12f(n-2)$ ($n\ge 3$)?
Jul 14, 2019
answer
23
Is there a generating function for any finite sequence of random numbers?
Apr 7, 2020
answer
19
Can we arrange $\{1,...,16\}$ in $4\times 4$-grid so {products of rows} = {products of columns}?
Jan 22, 2020
answer
15
Number of ways to label die with opposing faces summing to 7
Jan 1, 2020
answer
14
How to geometrically determine number of holes for a triangle
Dec 17, 2022
answer
14
Does it exist a way how to find the ways to get from one point to another when certain points must be avoided in a grid?
Mar 21, 2020
answer
12
Express $\sum_{j=1}^{n}\sum_{i=1}^{n} \frac{1}{i(i+j)}$ in terms of harmonic numbers
Jul 16, 2019
answer
11
With $x_1^2+3x_2^2+2x_1x_2=32$, find max value of $|x_1-x_2|$
Jul 4, 2022
answer
9
is it possible to divide $9\times 11$ rectangle into one $1\times 3$ rectangle and N tetrominoes?
Jan 16, 2020
Top Meta posts
0
1
9
Tag management 2022
Top network posts
View all network posts
30
Checkmate 30 kings with rooks
24
What node does 11 point to?
24
How to linearize the product of two binary variables?
24
A COVID-19 puzzle: How large a class do you need to fit 30 pupils?
21
A Rook's Territory in the Chessboard

Your privacy

By clicking “Accept all cookies”, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy.