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tzs's user avatar
tzs
  • Member for 13 years, 1 month
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16 votes

Proof of Floyd Cycle Chasing (Tortoise and Hare)

8 votes

How did Hermite calculate $e^{\pi\sqrt{163}}$ in 1859?

8 votes

Is there an intuitionist (i.e., constructive) proof of the infinitude of primes?

5 votes

How common is the use of the term "primitive" to mean "antiderivative"?

4 votes

Prove that $6|2n^3+3n^2+n$

4 votes

Fractions with radicals in the denominator

4 votes

A variant of the Monty Hall problem

4 votes

Why $\gcd(b,qb+r)=\gcd(b,r),\,$ so $\,\gcd(b,a) = \gcd(b,a\bmod b)$

2 votes

That $|a|\leq|b|$ implies existence of complex $z$ satisfying $|z-a|+|z+a|=2|b|$?

2 votes

Lower bound in algorithmic puzzle

1 vote

How could we manually approximate $\sum_{i=1}^{50} i! = 3.1035 \times 10^{64}$?

1 vote

How to solve this problem without the assistance of a calculator in under 3 minutes?

1 vote

Finding limits of rational functions as $x\to\infty$

1 vote

Evaluating $\int_{1}^{\infty}\exp(-(x(2n-x)/b)^2)\,\mathrm dx$

1 vote

Possibility of getting odd pair socks