Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
fast accurate Kneser sexp algorithm
#7
(08/19/2010, 02:35 AM)sheldonison Wrote: Strangely, the "superf"/"isuperf" subroutines sort of work for bases<eta, For example, if you type
init(sqrt(2));
superf(0) You'll get 5.76705325376430. This is the superfunction developed from the upper repelling fixed point, which is "4". For bases<eta, the sexp(z) function doesn't work, nor does the loop(n) function. It would require special unique code to get the function to work for the lower fixed point (=2), since "2" is an attracting fixed point, and the rest of the code is for repelling fixed points. Maybe someday? Also, eta doesn't work at all, and the loop(n) routine overflows for bases<1.7. I haven't debugged to understand why it ges an "exponent (expo) overflow."
ya! I have same error when I tried base=1.7. Wink I try base=sqrt(2) and more bases...

your code already was updated today. wow. Big Grin

Reply


Messages In This Thread
The pari-GP code - by sheldonison - 08/07/2010, 09:17 PM
updated kneser.gp code - by sheldonison - 08/19/2010, 02:35 AM
RE: updated kneser.gp code - by nuninho1980 - 08/19/2010, 12:08 PM
RE: updated kneser.gp code - by sheldonison - 08/20/2010, 01:05 AM
update to support B<eta - by sheldonison - 11/15/2010, 02:53 PM
RE: update to support B<eta - by nuninho1980 - 11/15/2010, 03:26 PM
another new version - by sheldonison - 11/17/2010, 06:52 PM

Possibly Related Threads...
Thread Author Replies Views Last Post
  "Kneser"/Riemann mapping method code for *complex* bases mike3 2 6,939 08/15/2011, 03:14 PM
Last Post: Gottfried
  Attempt to make own implementation of "Kneser" algorithm: trouble mike3 9 16,419 06/16/2011, 11:48 AM
Last Post: mike3
  Numerical algorithm for Fourier continuum sum tetration theory mike3 12 20,447 09/18/2010, 04:12 AM
Last Post: mike3
  regular sexp: curve near h=-2 (h=-2 + eps*I) Gottfried 2 6,177 03/10/2010, 07:52 AM
Last Post: Gottfried
  Attempting to compute the kslog numerically (i.e., Kneser's construction) jaydfox 11 19,144 10/26/2009, 05:56 PM
Last Post: bo198214
  regular sexp:different fixpoints Gottfried 6 12,218 08/11/2009, 06:47 PM
Last Post: jaydfox
  sexp(strip) is winding around the fixed points Kouznetsov 8 13,490 06/29/2009, 10:05 AM
Last Post: bo198214
  sexp and slog at a microcalculator Kouznetsov 0 3,280 01/08/2009, 08:51 AM
Last Post: Kouznetsov



Users browsing this thread: 1 Guest(s)