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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.
May
14
answered A simple problem about partition function and Young diagram
May
14
comment Intuitive understanding of why the sum of nth roots of unity is $0$
I came here to give this explanation but I see I was beaten to it. Good job.
May
13
awarded  Nice Answer
May
9
comment If you randomly choose a subset of the real line, what is the probability that it will be measurable?
The answer has to be zero. If not, I don't believe in choice.
May
7
answered Variance for summing over distinct random integers