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deinst's user avatar
deinst's user avatar
deinst
  • Member for 13 years, 6 months
  • Last seen more than a week ago
  • Monson, New Hampshire
45 votes
Accepted

What is a good book for learning math, from middle school level?

17 votes

Inequality: $(x + y + z)^3 \geq 27 xyz$

15 votes
Accepted

All positive integer solutions to $\frac{1}{x_1}+\frac{1}{x_2}+\cdots+\frac{1}{x_n}+\frac{1}{x_1 x_2 \cdots x_n}=1$

14 votes
Accepted

The minimum of two independent geometric random variables

10 votes
Accepted

Prove that integer $n$ exists such that $n^2$ begins with $201120122013$.

10 votes

Produce unique number given two integers

9 votes

Can you simulate from a cantor distribution?

9 votes

All positive integer solutions to $\frac{1}{x_1}+\frac{1}{x_2}+\cdots+\frac{1}{x_n}+\frac{1}{x_1 x_2 \cdots x_n}=1$

9 votes

A good book on Statistical Inference?

8 votes

The order of the number of integer pairs satisfying certain arithmetical function relationships

8 votes

simple question on probability....

6 votes
Accepted

Number of solutions of Frobenius equation

6 votes
Accepted

One vs multiple servers - problem

5 votes
Accepted

Reconstruct shape of a body from rationality of its projections

5 votes

Can a finite number of squares, with total area at most 1, be fitted into a square with area 2?

5 votes

Counting the number of Eden sequences in $\{1,2,\ldots,N\}$

5 votes
Accepted

Can this algorithm on removing $1$'s from a $(0,1)$-matrix fail?

5 votes
Accepted

Constructing a finite field

5 votes

Combinatorics problems that can be solved via infinite descent

4 votes
Accepted

Solve the "two trains and a fly" problem the hard way

4 votes
Accepted

Partition Problem, verifying solution in polynomial time

4 votes
Accepted

Upper Bounds on the Number of Lattice Points in an $n$-Simplex

4 votes
Accepted

A fast way to generate cyclic strings with few restrictions?

4 votes
Accepted

Geometrically find the center of a pentagon or hexagon

4 votes
Accepted

What are the restrictions on the covariance matrix of a nonnegative multivariate distribution.

4 votes
Accepted

Integer Linear Programming (ILP): NP-hard vs. NP-complete?

4 votes

How do you calculate probability of rolling all faces of a die after n number of rolls?

4 votes

If a graph of $2n$ vertices contains a Hamiltonian cycle, then can we reach every other vertex in $n$ steps?

3 votes
Accepted

Bayes point estimate using mode of a Gamma posterior distribution

3 votes
Accepted

About showing that the print statement in the pseudocode is executed $C_n$ times