718 reputation
2526
bio website
location Seattle, WA
age 70
visits member for 2 years
seen 14 hours ago

I retired in 2006 and bought Mathematica and a stack of math books with the goal to teach myself to become a world-class mathematician. I am on pace to achieve that goal sometime shortly after the next Ice Age.

I consider myself a Mathematical Mutt (no papers) who occasionally ventures off the back porch to play in the yard with the big dogs.

I donate regularly to the The OEIS Foundation.

When I look at the patterns, I can hear the wheels turning. When I look at the math, I find out the hamsters have died.


Nov
12
awarded  Citizen Patrol
Oct
29
comment How do we solve N-Rooks variation using primes?
Very nice solution! +1
Oct
28
comment local variable naming & symbolic argument
Same question, different user. mathematica.stackexchange.com/q/13576/973
Oct
28
comment How do we solve N-Rooks variation using primes?
@Paxinum, yes that is almost it. Unlike either problem, we can't move the pieces around. We must use what is available and remove what we don't need.
Oct
27
accepted How do we solve N-Rooks variation using primes?
Oct
27
comment How do we solve N-Rooks variation using primes?
+1, another fine solution.
Oct
27
comment How do we solve N-Rooks variation using primes?
+1, very nice! I was playing around with patterns of primes and thought a sudoku type of puzzle might be possible. It seems to be computer solvable. The last row of each matrix is one of the segements from Oppermann's Conjecture $(p^2-p,p^2]$
Oct
27
revised How do we solve N-Rooks variation using primes?
added solution
Oct
27
comment How do we solve N-Rooks variation using primes?
@rm-rf, yes, All we need to do is circle one prime in each row and each column. In this example, we would have 11 circles.
Oct
27
comment How do we solve N-Rooks variation using primes?
@rm-rf, primes share no rows or colummns
Oct
27
revised How do we solve N-Rooks variation using primes?
fixed note
Oct
27
asked How do we solve N-Rooks variation using primes?
Oct
26
revised Inputting two arrays for a module in Mathematica
explained local/global considerations
Oct
25
revised Inputting two arrays for a module in Mathematica
cleaned up text
Oct
25
revised Inputting two arrays for a module in Mathematica
added a variation to function
Oct
25
answered Inputting two arrays for a module in Mathematica
Oct
24
suggested suggested edit on Fastest square number test
Oct
22
revised Localizing Pattern Names
corrected spelling
Oct
22
suggested suggested edit on Localizing Pattern Names
Oct
21
comment Mollweide maps in Mathematica
This would be a nice example for the weekly newsletter. +1