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visits member for 2 years, 8 months
seen 1 hour ago

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My favorites are:

and I believe that Riemann's Hypothesis is true...

Questions waiting for your answer: $\phantom{If math isn't displayed correctly, go here...}$

Old Stuff:

Chuck Norris solved the Travelling Salesman problem in $O(1)$ time.


Jarrell: I thought you said to stay on the path!
Old Man: Yes, but you must know when to break the rules!


Mathematics (SE) should be the most comprehensive, most visited, and most valuable mathematics resource on the web. I don't see a reason to shoot for anything less. [Amen]


From Area51:


7h
comment Square root of a $3\times3$ matrix
@saeedeh you conjugate $M$ with a matrix $P$ representing the permutation of indices. $PMP^{-1}$ should be the rewritten matrix...
1d
comment Write out the operator (A)^2 for A = (d/dx + x)
@IlikeSerena I asked the OP to unaccept my answer
1d
comment Write out the operator (A)^2 for A = (d/dx + x)
Miles, please un-accept my answer it's wrong. thanks...
1d
comment What is the closed form for $\sum_{n=1}^\infty \frac1n - \frac1{n+1/p}$?
I appreciate your approach. Thanks +1...
1d
answered Write out the operator (A)^2 for A = (d/dx + x)
1d
comment What is the closed form for $\sum_{n=1}^\infty \frac1n - \frac1{n+1/p}$?
+1 great. Thanks...
1d
accepted What is the closed form for $\sum_{n=1}^\infty \frac1n - \frac1{n+1/p}$?
2d
comment What is the closed form for $\sum_{n=1}^\infty \frac1n - \frac1{n+1/p}$?
@achillehui looks promising...
2d
revised What is the closed form for $\sum_{n=1}^\infty \frac1n - \frac1{n+1/p}$?
added 22 characters in body
2d
comment What is the closed form for $\sum_{n=1}^\infty \frac1n - \frac1{n+1/p}$?
So you say there is no rule to generate the $t_{p,k}$ terms, that show up in my example? Unbelievable...
2d
comment What is the closed form for $\sum_{n=1}^\infty \frac1n - \frac1{n+1/p}$?
Looks good, but not what I was looking for. Can express it that in the terms given in the question?
2d
comment Checking connectivity of adjacency matrix
I once had a similar question...
2d
asked What is the closed form for $\sum_{n=1}^\infty \frac1n - \frac1{n+1/p}$?
2d
comment Describe to me what is happening here (Pre-algebra)
@GitGud maybe the other seemed too obvious, at least to me...
2d
comment Describe to me what is happening here (Pre-algebra)
Hate is not good for your karma...
2d
answered Describe to me what is happening here (Pre-algebra)
2d
reviewed No Action Needed Part limit in Complex Analysis
2d
comment What is the smallest constant that has explicitly appeared in a published paper?
@PerManne nice...
Jul
11
comment $\displaystyle k^{th}$ derivative of a Gaussian function with zero mean
Are you sure about the $\left(\dfrac{x}{\sigma^2}\right)^k$ in the numerator and $\left(\dfrac{x^2}{\sigma^2}\right)^k$ in the denominator?
Jul
11
comment $\displaystyle k^{th}$ derivative of a Gaussian function with zero mean
There is a relation to Hermite polynomials. Maybe you can start with pluggin in: $H_{n}(x) = 2^n\,U\left(-\frac{n}{2},\frac{1}{2},x^2\right)$...