This is the mail archive of the
gsl-discuss@sources.redhat.com
mailing list for the GSL project.
Re: GSL 1.4: BUG #8 [rk8pd.c]
- From: M Joonas Pihlaja <jpihlaja at cc dot helsinki dot fi>
- To: Luc Maisonobe <Luc dot Maisonobe at free dot fr>
- Cc: gsl-discuss at sources dot redhat dot com
- Date: Sat, 8 Nov 2003 15:21:24 +0200 (EET)
- Subject: Re: GSL 1.4: BUG #8 [rk8pd.c]
- References: <1068274810.1218.19.camel@lehrin.local.spaceroots.org>
On Sat, 8 Nov 2003, Luc Maisonobe wrote:
[snip]
> Despite I think nobody is interested anymore, I promised to check the
> coefficients of the method, so here are my results.
I'm interested, at least, so thank you for sharing.
> The maximal error in rk8pd.c is about 3.92e-17.
> The maximal error in rksuite.f is about 4.49e-29.
What do you mean by maximal error here -- of the main estimator
itself or the second embeded estimator? And how do you compute
these -- from the principal error function or some other method?
I'm very curious, because you say the results for the
coefficients are exact after fixing two free parameters.
Best Regards,
Joonas Pihlaja