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RE: [MO]: Pade-approximation method for iteration of exp(x)
#1
Hi folks -

just came across the following entry in mathOverflow:

answer of John Sidles

He gives a short overview of his method; he has also a longer treatize:

Pade-method, PDF

Unfortunately I've never done anything with Pade-approximation so I cannot say much meaningful about that approach, it would be good if someone else here could comment on this.

Hmm - just when I checked for the authors name I notice, that this article was already posted in december (I must have missed this) and only something was currently edited.

Gottfried
Gottfried Helms, Kassel
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#2
You write in the title exp(x)-1, but it is exp, isnt it?
Reminds me a bit of the rational approximation approach by Ansus, though I think he used it rather for the superfunction instead of the fractional iterates.
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#3
(02/14/2011, 08:58 AM)bo198214 Wrote: You write in the title exp(x)-1, but it is exp, isnt it?
Reminds me a bit of the rational approximation approach by Ansus, though I think he used it rather for the superfunction instead of the fractional iterates.

urrks. True - seems my brain lowers its input-separation precision... :-(
I'll update the header line. Thanks for the check

Gottfried
Gottfried Helms, Kassel
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