Fred Kline

Seattle, WA

Age: 72

Contact: rudytoody.AT.comcast.DOT.net

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.

Jan
20
comment Is there any attempt to explain irrational numbers from a geometrical point of view?
mitpress.mit.edu/sites/default/files/titles/content/…
Jan
14
comment Pronunciation of ¡ (inverted exclamation mark, historically used for subfactorial)
GNAB = GNAB, Not A Bang
Jan
9
comment What is the shortest LOOP program that outputs 2016?
You want a loop that returns: $2^{11}-2^{5}.$
Jan
5
comment Proposals for polymath projects
One possible finite set to evaluate: Each prime in the product is found in half of the square-free divisors of the product: Table[GCD[Divisors[2*3*5*7], n], {n, {2, 3, 5, 7}}] // MatrixForm $\left( \begin{array}{cccccccccccccccc} 1 & 2 & 1 & 1 & 2 & 1 & 2 & 2 & 1 & 1 & 2 & 1 & 2 & 2 & 1 & 2 \\ 1 & 1 & 3 & 1 & 3 & 1 & 1 & 1 & 3 & 3 & 3 & 1 & 3 & 1 & 3 & 3 \\ 1 & 1 & 1 & 5 & 1 & 1 & 5 & 1 & 5 & 1 & 5 & 5 & 1 & 5 & 5 & 5 \\ 1 & 1 & 1 & 1 & 1 & 7 & 1 & 7 & 1 & 7 & 1 & 7 & 7 & 7 & 7 & 7 \\ \end{array} \right)$
Dec
17
comment Rationalizing a numerator
+1 for the link to the great question
Dec
9
accepted Why the strange limit?
Dec
7
comment Why the strange limit?
@Graumagier, make that an answer so I can sign off on it.
Dec
7
asked Why the strange limit?
Nov
10
comment Find the sum of the series $\frac{1}{3}+\frac{1}{4}.\frac{1}{2!}+\frac{1}{5}.\frac{1}{3!}+\cdots$
mathoverflow.net/q/126739 for similar question.
Oct
3
comment Is zero the center of the numeric sequence?
+1 for eliciting good answers
Oct
3
comment Division algorithm without using the representation
You might try The Art of Computer Programming by Donal Knuth V1, chap 4.
Oct
1
comment Counting numbers in a sequence - explain "Add 1 before you're done" rule
+1 for Remark Programmers know this as the fencepost or one-off problem. It is one of the most common coding mistakes
Sep
24
revised Proof of Andrica when Assuming Oppermann
added link to proof
Sep
14
awarded Scholar
Sep
14
accepted What type of organizations are exempt from EEOC regulations?
Sep
14
awarded Autobiographer
Sep
14
awarded Supporter
Sep
13
revised What type of organizations are exempt from EEOC regulations?
added US tag
Sep
13
awarded Student
Sep
13
asked What type of organizations are exempt from EEOC regulations?
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