Re: Polynomial fitting routines?



Steven G. Kargl wrote:


I'm looking for an algorithm that will fit a polynomial to log(x) for 0.25 <= x <= 2 with at least 64-bit precision.

A couple of old books deal with this: John F. Hart et al, Computer
Approximations, and W. J. Cody and W. Waite, Software Manual for the Elementary Functions. You may need a rational rather than a polynomial approximation. If you google, try "approximation" for your problem rather than "fitting."
.




Relevant Pages

  • Re: Galactic Gravitation...
    ... approximation. ... Since if you removed all the local sources of gravity, ... Based on a quick google for radius and period of the sun's galactic ... and I also don't know if I googled the correct radius and period; ...
    (rec.arts.sf.science)
  • Re: Programming language popularity
    ... The total number of results reported by Google for a search has ... always been some sort of approximation whose error margin is unknown ... Note that Google does not allow listing hits ...
    (comp.lang.lisp)
  • Capacitance of interdigitated electrodes
    ... An approximation would be OK. ... Not had much luck searching ... Google. ... Any pointers much appreciated. ...
    (sci.electronics.design)
  • Capacitance of interdigitated electrodes
    ... An approximation would be OK. ... Not had much luck searching ... Google. ... Any pointers much appreciated. ...
    (sci.electronics.components)
  • Re: Polynomial fitting routines?
    ... Approximations, and W. J. Cody and W. Waite, Software Manual for the Elementary Functions. ... You may need a rational rather than a polynomial approximation. ... If you google, try "approximation" for your problem rather than "fitting." ... Cody and Kuki did the math library for IBM 360s so there may ...
    (comp.lang.fortran)