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9h
comment Derivative in terms of finite differences
Have you checked Jordan's classic book The Calculus of Finite Differences?
Jul
16
comment Why is the Gamma function shifted from the factorial by 1?
$\int_0^z \frac{x^{t-1}}{(t-1)!} \frac{(z-x)^{s-1}}{(s-1)!} \, dx = D_{z}^{-s} \frac{z^{t-1}}{(t-1)!} = \frac{z^{s+t-1}}{(s+t-1)!}$ is easy to remember if one can remember to associate $s=1$ with integration and $s=0$ with the identity or Dirac delta function.
Jul
8
comment Your favorite papers on geometric group theory
Similar to mathoverflow.net/questions/3858/…
Jul
6
comment In “splendid isolation”
@Wlodz: See also the comments in the preface of Needham's "Visual Complex Analysis" on geometry and Newton's calculus.
Jun
21
comment Motzkin polynomials and enumeration of chord diagrams
Good. I don't think you can access the draft edits unless you are a registered contributor to the OEIS. I'll send you pfds through e-mail of the current drafts.
Jun
21
comment Motzkin polynomials and enumeration of chord diagrams
Do you mind if I cite this answer in the OEIS? Btw, the coefficients of these polynomials factor to give relations to other entries of the OEIS that have been in the queue for publishing for a couple of days now.
Jun
21
accepted Motzkin polynomials and enumeration of chord diagrams
Jun
19
revised Motzkin polynomials and enumeration of chord diagrams
added 1 character in body
Jun
19
asked Motzkin polynomials and enumeration of chord diagrams
Jun
18
revised Newton series and Fourier transform - is there an analogy?
index typo
Jun
5
revised Why is there a connection between enumerative geometry and nonlinear waves?
author's name corrected
Jun
4
awarded  Nice Answer
Jun
4
revised First to note the relation between Stasheff polytopes (associahedra) and compositional inversion?
more tags
Jun
4
asked First to note the relation between Stasheff polytopes (associahedra) and compositional inversion?
Jun
1
comment Geometric / physical / probabilistic interpretations of Riemann zeta(n>1)?
mathoverflow.net/questions/151706/… for Harden's comment.
Jun
1
comment Geometric / physical / probabilistic interpretations of Riemann zeta(n>1)?
arxiv.org/abs/1305.5502 for Nash's comment.
May
31
comment What is Lagrange Inversion good for?
See also page 7 of "Formal group laws and genera" by T. Panov.
May
31
revised What is Lagrange Inversion good for?
Added relation to noncrossing partitions
May
21
awarded  Revival
May
20
comment Cycling through the Zeta Garden: Zeta functions for graphs, cycle index polynomials, and determinants
@Draks: I'm denoting the matrices for the OEIS examples, not specifically for the Ihara zeta.