505 reputation
310
bio website yume3.sourceforge.net
location MT
age 93
visits member for 3 years, 2 months
seen Sep 11 at 17:29

Former pictures: Dakota puddles (prairie potholes), 2012-01-30; Yellowstone River icicles, 12 Dec 2011; Black-and-white ducks on YR, ca 6 Jan 2012; Eagle in eastwind snow, on south bank of YR, 15 Jan 2012; Sunlight & shadows on riverbottom, 5 Feb 2012; Duck in park puddle, June 2011; Trumpeter swan pair on YR, 13 Feb 2012; American Avocet on YR, 10 May 2012; Pelicans flying above YR, 24 June 2012, and pelican in YR, 16 May 2012; Rainbow above Livingston Peak, 23 July 2012; Rose/squirrel, 21 Nov 2012; old Bangalore station, Dec 2004; Bighorn sheep, Zion, 8 Nov 2013

Author of programs yume as seen here and qenqote as described here

qenqote automates URL-formatting editing and can minimize the amount of manual editing needed when you include a URL in a stackexchange post.


Nov
15
comment Problem on Divide-and-Conquer Relation
Although you say "Each player who loses in the first round gets nothing", the problem says "a player who loses in the first round gets $100".
Nov
15
comment Counting walks on colored graphs
Can you explain your $3*2^{k−1}$ walks on k 3-colored vertices formula? At least at k=1 and k=2 the numbers appear to be twice as large; e.g {br, bg, gr, gb, rg, rb} at k=1, and {gbg, grg, gbr, grb, etc} at k=2.
Nov
14
comment Algorithms and Simulation
Were you given a definition of "optimal"? Or any limitations? (I.e. for (b) it looks like $\sigma^2=1$ should be optimal for the obvious def of optimal)
Nov
11
answered Proving a Diophantine equation has no solutions
Oct
12
comment Find the minimum number of links to remove from digraph to make it acyclic
An acyclic graph contains no cycles at all, rather than merely a vertex that's not in a cycle.
Oct
11
comment Powers as a complete residue system modulo $p$?
Also see MSE question re the number of equivalence classes of (in notation of present question) $k^a\mod p$
Oct
10
comment How to express an irrational as a continued fraction in computer with high precision?
Rather than "up to 16 bits" being not quite right, it's totally wrong. Typical IEEE754 64-bit double-precision numbers use effectively 53 bits for mantissa, giving ~ 16 decimal digits accuracy. (15.95... = 53 * ln(2)/ln(10).)
Oct
3
answered Create a new pseudo-random number based on a seed, using simple formulae
Sep
19
comment Maximizing growth rate in betting on multiple events
Question 1: Suppose $b_{134}$ is the the fraction of stake $s$ that is bet on $\{1,3,4\}$. Suppose $t=b_{134}*s/3$. If events 1 and 3 win and event 4 loses, is the payoff equal to $(1+c_1+1+c_3)*t$ (that is, the amount $s*b_i$ spreads evenly across the elements of bet #$i$) or is it some other value? Question 2: Do all events in a set have to win to get a payoff? Question 3: Since all bets are simultaneous, there appears to be no "long run" to be concerned about, and no reason to act other than Charles suggested in his answer, right?.
Sep
19
comment Maximizing growth rate in betting on multiple events
Ok, let an $i$ be given. What events are elements of bet #$i$ ? Is the amount $b_i$ spread evenly across the elements of bet #$i$ ? Does bet #$i$ get paid off and its result reported to you before you make bet #$i+1$?
Sep
19
awarded  Commentator
Sep
19
comment Maximizing growth rate in betting on multiple events
Is one allowed to bet on the same alternative multiple times? Is the order of bet payoffs specified? Is $b_i$ an amount bet on event $i$, or on some subset of the events?
Sep
19
answered Prove that $2x^2 - 3xy + 2y^2 \geq 0$
Sep
17
revised The largest possible prime gap?
Note re a−4153 and a+3313
Sep
17
answered One person's long number sequence: is it always pseudo random?
Sep
17
answered The largest possible prime gap?
Sep
16
revised Finding the/a point within an irregular polygon which is furthest from polygon's line segments?
added cgal link
Sep
15
revised Finding the/a point within an irregular polygon which is furthest from polygon's line segments?
added 219 characters in body
Sep
15
answered Finding the/a point within an irregular polygon which is furthest from polygon's line segments?
Sep
14
answered Poisson distribution question, reading from the table