Will Orrick

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74 Answers

newest activity votes
8
Trying to understand why circle area is not $2 \pi r^2$
6
How many non-isomorphic permutation selections are on an arbitrary N x N square matrix with rotations applied?
6
What *is* 1 cm$ ^{ -3}$?
6
What are special functions for?
5
How to show that a root of the equation $x (x+1)(x+2) … (x+2009) = c $ can have multiplicity at most 2?
5
Finding a system of sets resembling the projective plane
4
Signed Multinomial Expansion Coefficients?
4
Do determinants of binary matrices form a set of consecutive numbers?
4
Number of White squares
4
Continuous versus differentiable
4
How Can One Prove $\cos(\pi/7) + \cos(3 \pi/7) + \cos(5 \pi/7) = 1/2$
3
Roots of unity?
3
What is the difference between first and second right eigenvectors of a row stochastic matrix and their meaning?
3
About Bell Polynomials
3
How to draw a Frenet Trihedron in Sage?
3
Computing the Smith Normal Form
3
How does one show that $(n-2)! = 2^{m-1} m! (n - 2m)!$ has only one solution for $n\ne 6$?
3
Elegant Trigonometric Sums
3
What does the steady state represent to a Markov Chain?
3
Finding the correct pivot in Smith normal form
3
If $F(a, b)=\langle a, B\rangle$ then $B=a^ib^{\epsilon}a^j$: a neat proof?
3
knapsack algorithm that looks too good to be true
3
The product of n consecutive integers is divisible by n factorial
2
What explains this bizarre behavior?
2
Behaviour of an extended binary Hamming code when 3 errors have occurred
2
Combinatorics Example Problem
2
Proving that $\sum_{i=0}^{n}\binom{n}{i}i^{n-i}(n-i)^{i}\le\frac{1}{2}n^n$
2
Binomial coefficients (1/2, k)
2
Finding range, partiton and finding the dependency of a random variable
2
Number of non-negative integer solutions of an equation using generating functions
1 2 3