718 reputation
2526
bio website
location Seattle, WA
age 70
visits member for 2 years
seen 21 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.


Apr
17
accepted Why the complicated pattern in this 3D plot?
Apr
17
comment Why the complicated pattern in this 3D plot?
@Kuba, perfect! Make it an answer and I'll sign off.
Apr
17
revised Why the complicated pattern in this 3D plot?
fised bad exponent, replaced plot
Apr
17
asked Why the complicated pattern in this 3D plot?
Apr
9
awarded  Yearling
Feb
17
answered Convert number to exponent form with highest power possible
Feb
15
comment Conditionally replace rows in lists
@kguler, I was tormented by a simple replacement problem until I found your answer. The _? was the key. b /. _?(1 < # &) :> 0 Thanks for the help.
Feb
11
revised Using Reduce on an inequality
fixed syntax
Feb
11
revised Using Reduce on an inequality
added final formula
Feb
11
comment Using Reduce on an inequality
@rasher, looks good. Is there any way to explain the steps?
Feb
11
asked Using Reduce on an inequality
Feb
2
accepted Question about inequality plot
Feb
2
comment Question about inequality plot
@murray, the plot expression is from WA
Feb
2
asked Question about inequality plot
Oct
3
comment How to optimize computing a product?
Possible duplicate mathematica.stackexchange.com/q/26732/973
Aug
6
accepted Collatz Tool Box — any speed ups possible?
Aug
6
answered Collatz Tool Box — any speed ups possible?
Aug
5
accepted Can we compile using only Integers Of Unusual Size?
Aug
5
comment Can we compile using only Integers Of Unusual Size?
@kirma, make that an answer and I will accept it.
Aug
5
asked Can we compile using only Integers Of Unusual Size?