Does anyone have taylor series approximations for tetration and slog base e^(1/e)?
#13
(05/20/2011, 06:43 PM)andydude Wrote: That is a really interesting question. First of all, that is one of the bases for which the series expansion of (\exp_b^t(x)) in terms of x is relatively simple with "nice" coefficients, but substituting x=1 (which I think you are talking about) gives a function of t which is not strictly a power series, which makes finding that power series more difficult. Anyways, I believe I have done this before, but I don't have access to my notes right, now, so let me get back to you later today...

Andrew Robbins

Your close to what I'm talking about. I'll write it out in full math format

\(
f(t) = a\, \{t\}\, b =
\left\{
\begin{array}{c l}
\exp_\eta^{\alpha t}(\exp_\eta^{\alpha-t}(a) + \exp_\eta^{\alpha -t}(b)) & t \in [-1,1]\\
\exp_\eta^{\alpha t-1}(b * \exp_\eta^{\alpha 1-t}(a)) & t \in [1,2]\\
\end{array}
\right.
\)

which maps the growth of addition to multiplication to exponentiation. I hope that base eta will behave better than base 2 and base e behaved.
Reply


Messages In This Thread
RE: Does anyone have taylor series approximations for tetration and slog base e^(1/e)? - by JmsNxn - 05/26/2011, 03:18 AM

Possibly Related Threads…
Thread Author Replies Views Last Post
  Mixed-base tetration: five preprints, a faster fatou.gp fork, and a base-change calcu Lightrunner 0 873 07/15/2026, 08:33 AM
Last Post: Lightrunner
  Seeking an arXiv endorser for mixed-base tetration (math.DS) Lightrunner 0 561 07/13/2026, 10:19 PM
Last Post: Lightrunner
  [2sinh] exp(x) - exp( - (e-1) x), Low Base Constant (LBC) 1.5056377.. tommy1729 3 7,017 04/30/2023, 01:22 AM
Last Post: tommy1729
  Divergent Series and Analytical Continuation (LONG post) Caleb 54 70,728 03/18/2023, 04:05 AM
Last Post: JmsNxn
  Discussion on "tetra-eta-series" (2007) in MO Gottfried 40 51,146 02/22/2023, 08:58 PM
Last Post: tommy1729
Question E^^.5 and Slog(e,.5) Catullus 7 13,896 07/22/2022, 02:20 AM
Last Post: MphLee
Question Slog(Exponential Factorial(x)) Catullus 19 29,061 07/13/2022, 02:38 AM
Last Post: Catullus
Question Slog(x^^^2) Catullus 1 3,932 07/10/2022, 04:40 AM
Last Post: JmsNxn
  Base -1 marraco 15 41,751 07/06/2022, 09:37 AM
Last Post: Catullus
Question Tetration Asymptotic Series Catullus 18 27,524 07/05/2022, 01:29 AM
Last Post: JmsNxn



Users browsing this thread: 2 Guest(s)