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Dec
16
awarded  Nice Question
Dec
12
awarded  Notable Question
Dec
11
reviewed Close “Converse” Schur's lemma
Dec
11
reviewed Leave Open Evaluate $\int_0^{\pi/2}x\cot{(x)}\ln^4\cot\frac{x}{2}\,\mathrm dx$
Dec
11
reviewed Leave Open Understanding simulation of Brownian Motion
Dec
10
awarded  Caucus
Nov
14
awarded  Popular Question
Nov
6
accepted Counting the number of complete bipartite subgraphs
Nov
4
reviewed Leave Open Determine third point of triangle when two points and all sides are known
Nov
4
reviewed Close Proving 2 Sets have the same cardinality
Nov
4
reviewed Approve Find the conditions for the cubic polynomial to always be increasing
Nov
4
comment Find an explicit formula for the sequence whose first few terms are 1/3, 2/3, 2, 8, 40, 240…
@augurar: From the OP's post"I know I need to use a factorial in the formula".
Nov
4
answered Find an explicit formula for the sequence whose first few terms are 1/3, 2/3, 2, 8, 40, 240…
Nov
4
revised Counting the number of complete bipartite subgraphs
added 59 characters in body
Nov
4
comment Counting the number of complete bipartite subgraphs
@Danny: Yes, I am looking for a polynomial time algorithm.
Nov
4
asked Counting the number of complete bipartite subgraphs
Nov
1
reviewed Leave Open Joint probability of Markov evens
Nov
1
reviewed Leave Open Linear Operator and Matrices
Nov
1
reviewed Close How to prove that $\sum_{t=1}^{\infty}\frac{t}{2^{t}}=2$
Nov
1
reviewed Approve Left inverse of matrix exists if $A\mathbf x=\mathbf b$ has a unique solution?