[Regular tetration] [Iteration series] norming fixpoint-dependencies
#9
(08/30/2010, 11:08 AM)tommy1729 Wrote: ok that makes some sense.

now explain me what you are doing in this thread and WHY ?
Using base b= sqrt(2)
  • what is the height-representation of 3 ?
    By Kousnetzov? By Robbins slog? By regular-tetration using fixpoint 2? using fixpoint 4?
Besides the difficulty to determine "the" height of 3 by the above methods - there is still room to find an optimal solution for tetration. My idea gives one which is only depending on the integer heights, thus for instance independent of the selection of the fixpoint.


Quote:and WHY is f(z) periodic ???
Code:
ยด
f(z)         = ... z^^-3 + z^^-2 - z^^-1 + z - z^^1 + z^^2 - z^^3 +...

let y=b^b^z = z^^2
f(y)        = ... y^^-3 + y^^-2 - y^^-1 + y    - y^^1 + y^^2 - y^^3 +...
            = ... z^^-1 + z     - z^^ 1 + z^^2 - z^^3 + ...
            = f(z)

f(z) and f(y)=f(z^^2) are equal => f(z) is periodic in terms of the height-parameter


Quote:how to compute its period ??

f(z) = f(z^^2) where z^^2 = b^b^z ==> period-length is delta_h = 2

It is more difficult to find the amplitude


Gottfried Helms, Kassel
Reply


Messages In This Thread
RE: [Regular tetration] norming fixpoint-dependencies - by Gottfried - 08/30/2010, 12:34 PM

Possibly Related Threads…
Thread Author Replies Views Last Post
  the fraction iteration approximation of tetration Alex Zuma 2025 0 334 04/14/2026, 06:52 PM
Last Post: Alex Zuma 2025
  Exotic fixpoint formulas tommy1729 2 4,238 06/20/2023, 10:10 PM
Last Post: tommy1729
  Divergent Series and Analytical Continuation (LONG post) Caleb 54 61,661 03/18/2023, 04:05 AM
Last Post: JmsNxn
  Discussion on "tetra-eta-series" (2007) in MO Gottfried 40 44,400 02/22/2023, 08:58 PM
Last Post: tommy1729
  What are the types of complex iteration and tetration? Daniel 5 8,752 08/17/2022, 02:40 AM
Last Post: JmsNxn
Question Tetration Asymptotic Series Catullus 18 23,994 07/05/2022, 01:29 AM
Last Post: JmsNxn
Question Formula for the Taylor Series for Tetration Catullus 8 14,501 06/12/2022, 07:32 AM
Last Post: JmsNxn
  Fractional iteration of x^2+1 at infinity and fractional iteration of exp bo198214 17 54,743 06/11/2022, 12:24 PM
Last Post: tommy1729
  Categories of Tetration and Iteration andydude 13 46,599 04/28/2022, 09:14 AM
Last Post: MphLee
  Calculating the residues of \(\beta\); Laurent series; and Mittag-Leffler JmsNxn 0 3,896 10/29/2021, 11:44 PM
Last Post: JmsNxn



Users browsing this thread: 1 Guest(s)