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Jan
14
reviewed Close A function $f$ is defined on all $\mathbb R$, and is continuous there, with finite limits at infinity. Show that $f$ is uniformly continuous.
Jan
14
comment Expectation of maximum of Binomial RVs
possible duplicate of Bounds for the maximum of binomial random variables
Jan
12
reviewed Close If $AB=BA$ and $A=P^{-1}DP$ then $B=P^{-1}SP$
Jan
12
answered Odds of anyone in a group getting picked twice in a row
Jan
10
reviewed Leave Open A question on a certain transformation of a normal random variable
Jan
10
reviewed Close function is continuous iff its composition with a curve is continuous
Jan
10
reviewed Close An Application: The Stone-Cech Compactification
Jan
10
reviewed Leave Open Solutions of $x(\ln x)^2=e$
Jan
10
awarded  Custodian
Jan
10
reviewed Leave Open Eigenvalue problem in functional analysis?
Jan
10
reviewed Leave Open comparing Betti numbers
Jan
10
reviewed Leave Open simplification of trig identities math check
Jan
9
answered Is there a reason of $\cos(11x)+\sin(11(x+1))\approx 0$
Jan
9
comment Visually stunning math concepts which are easy to explain
The basic idea is pretty simple: ${i \choose k} = {i \choose k-1} + {i-1 \choose k-1}$, and this recurrence holds $\mod p$ as well.
Jan
9
comment Visually stunning math concepts which are easy to explain
I'd also note that it's possible to compute ${i \choose k} \mod p$ without computing $i \choose k$. For large $i$ this would matter.
Jan
9
reviewed Leave Open Projection onto U through V
Jan
8
awarded  Good Answer
Jan
7
answered Distinct ways three integers can sum to a constant
Jan
7
reviewed Leave Open Standard deviation of a baised $d$-sided coin
Jan
7
reviewed Reject Gelfand-Mazur theorem on $GL_n(\mathbb{C})$