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ShreevatsaR
  • Member for 13 years, 10 months
  • Last seen this week
58 votes
3 answers
6k views

What is the formula for pi used in the Python decimal library?

57 votes
2 answers
5k views

How do the Catalan numbers turn up here?

52 votes
6 answers
4k views

Finding the largest equilateral triangle inside a given triangle

20 votes
3 answers
2k views

Are the fractional parts of $\log \log n!$ equidistributed or dense in $[0,1]$?

20 votes
1 answer
2k views

Can the order of 2 mod p be arbitrarily small (relative to $p - 1$)?

14 votes
2 answers
902 views

Can we axiomatize a field starting with the binary operations and only “equational” axioms?

14 votes
4 answers
2k views

What is the probability that the sum of digits of a random $k$-digit number is $n$?

12 votes
1 answer
655 views

The asymptotics of the products over primes $\prod\limits_{2<p\le n}\left(1 - \frac1{p-1}\right)$

11 votes
3 answers
1k views

How many "distinct" polynomials functions are there mod $n$?

9 votes
3 answers
338 views

Finding where the tail starts for a probability distribution, from its generating function

8 votes
1 answer
1k views

Throwing balls into $b$ buckets: when does some bucket overflow size $s$?

8 votes
2 answers
2k views

Does this really converge to 1/e? (Massaging a sum)

7 votes
1 answer
302 views

The sum $\sum\limits_{n \ge 0} \binom{m-1}{n} \frac{n!}{m^n} + \binom{n+1}{2}\binom{m-1}{n-1}\frac{(n-1)!}{m^n}$ is asymptotic to $\sqrt{9πm/8}$

7 votes
2 answers
1k views

Recurrence relations on a continuous domain

7 votes
2 answers
2k views

Primes modulo which a given quadratic equation has roots

6 votes
1 answer
300 views

Not-too-slow computation of Euler products / singular series

6 votes
2 answers
296 views

Gosper's identity for the golden ratio: $\frac{2^{2/5}\sqrt{5} \, \Gamma(1/5)^4}{\Gamma(1/10)^2 \,\Gamma(3/10)^2} = \phi$

5 votes
2 answers
5k views

Sum of products of $(1 - 1/p)$

4 votes
1 answer
210 views

Smallest number of residue classes for a polynomial function mod $n$ that separates $0$

2 votes
1 answer
641 views

Sum of two nonzero squares

2 votes
2 answers
190 views

Coincidence in Diophantine solution parametrization for Pythagorean triples etc

1 vote
1 answer
65 views

Asymptotics of a sieve-like sum over primes