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Jun
30
answered Equality of outcomes in two Poisson events
Jun
29
comment Enlightening misunderstandings of test questions
Joel, I knew a guy in high school who, when asked on a physics test to "name the force acting on this object", named it "Bob".
Jun
23
comment Formula for occurrence of leap years in the Jewish calendar
I haven't thought about it, but I would imagine that for the sets that are likely to occur in calendar applications -- that is, where the leap years are roughly evenly spaced -- you're more likely to get "lucky" than you would than for sets chosen uniformly at random.
Jun
21
awarded  Nice Question
Jun
21
awarded  Scholar
Jun
21
accepted What's the minimum of $\int_0^1 f(x)^2 \: dx$, subject to $\int_0^1 f(x) \: dx = 0, \int_0^1 x f(x) \: dx = 1$?
Jun
20
comment Is the Iterated Continued fraction from Convergent​s for Pi/2 exactly 3/2?
So I don't know much about this, but is it possible that this process always converges to $3/2$, or at least does so for starting points in a fairly wide range? That seems more likely than that this is some special property of $\pi/2$.
Jun
20
comment What's the minimum of $\int_0^1 f(x)^2 \: dx$, subject to $\int_0^1 f(x) \: dx = 0, \int_0^1 x f(x) \: dx = 1$?
Well, there is the same mysterious constant of 12. I may give it a shot.
Jun
20
asked What's the minimum of $\int_0^1 f(x)^2 \: dx$, subject to $\int_0^1 f(x) \: dx = 0, \int_0^1 x f(x) \: dx = 1$?
Jun
20
comment Three consecutive sums of two squares
The sequence of numbers n such that n, n+1, n+2 are all sums of two squares is given at oeis.org/A082982 . (As you'd expect, they're all multiples of 8.) This sequence doesn't look to me like there's a nice formula. Of course this doesn't prove there isn't one.
Jun
20
comment What resources are there for learning Russian math terminology?
While browsing in the library a couple weeks ago I came across "Russian for the Mathematician" by Sydney H. Gould. This might be what you're looking for. There appear to be very cheap used copies available if your library doesn't have it.
Jun
17
awarded  Nice Answer
May
31
comment Simple way to measure or calculate the volume of clothing?
There's a lot of air in clothing, as anybody who's squashed down a suitcase to get more into it knows. See also those vacuum-storage bags that are advertised on late night television.
May
31
comment On doubly graceful permutations
Vote for Yuval's answer! He actually solves the problem instead of just idly speculating.
May
31
answered On doubly graceful permutations
May
24
answered Fibonacci/Lucas Number Congruences
May
20
awarded  Fanatic
May
17
comment Finding the measure of an angle
It doesn't matter, though; your two solutions are just mirror images of each other.
May
14
comment Generating functions for combinatorics
A good point. But there are worse publishers to give your money to than A K Peters.
May
14
comment A simple problem about partition function and Young diagram
Nicolas: you're on the right track.