Reputation
1,010
Next privilege 2,000 Rep.
Edit questions and answers
Badges
4 17
Newest
 Necromancer
Impact
~13k people reached

Feb
29
revised A simple test for degenerate eigenvalues of a holomorphic matrix-valued function?
added 27 characters in body
Feb
3
comment Can't understand this question related to arithmetic progression.
So there you have it: you need to ask your teacher. The progression is definitely not arithmetic.
Feb
3
answered Can't understand this question related to arithmetic progression.
Jan
21
awarded  Necromancer
Jan
21
revised Exponential integral $ \int_0^\infty \frac{x^t}{\Gamma(t+1)}\text dt$
edited body
Jan
21
revised Exponential integral $ \int_0^\infty \frac{x^t}{\Gamma(t+1)}\text dt$
deleted 19 characters in body
Jan
21
awarded  Revival
Jan
21
answered Exponential integral $ \int_0^\infty \frac{x^t}{\Gamma(t+1)}\text dt$
Oct
22
comment Is $\sum_n\exp(ian+ibn^2+icn^3)$ known in terms of anything else?
@tired I'm mainly interested in exact results. However, any handles on this series would be useful.
Oct
22
awarded  Curious
Oct
21
revised Is $\sum_n\exp(ian+ibn^2+icn^3)$ known in terms of anything else?
added 145 characters in body
Oct
21
comment Is $\sum_n\exp(ian+ibn^2+icn^3)$ known in terms of anything else?
@Paul I might need to get on the physicist-looking-for-low-hanging-fruit queue, then.
Oct
21
asked Is $\sum_n\exp(ian+ibn^2+icn^3)$ known in terms of anything else?
Oct
16
comment Indefinite Bessel integrals
Oof, yeah, that's definitely doable. I was hoping for something a bit more packaged up. Thanks, though. (Note that MathJax also accepts \begin{align} constructs which look slightly better.)
Oct
12
asked Indefinite Bessel integrals
Oct
5
awarded  Popular Question
Sep
24
answered Approximation to series for quantum harmonic oscillator
Jun
23
comment Approximating dirac delta function with sinc functions
@MattRosenzweig I don't really have time to address this but if you have a fix you're welcome to implement it.
May
8
awarded  Yearling
May
5
comment Positive and negative complex numbers?
In fact, engineers have taken this to the extreme of saying that $j=-i$ is the real square root of -1, and changed all their formulas accordingly. (Well, sort of. They care mostly about time dependence, so they prefer the form $e^{j\omega t}$, whereas spatially-minded physicists prefer $e^{i(kz-\omega t)}$ for plane waves. And they feel $i$ is an appropriate symbol for current, so they shifted over to $j$. They assure me it makes sense.) Whatever the reasons, there are large stretches of physics vs engineering formula mismatches which are magically fixed by setting $j=-i$.