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Re: [Bug-gsl] bug in manual - gsl_odeiv_control_standard_new
From: |
Brian Gough |
Subject: |
Re: [Bug-gsl] bug in manual - gsl_odeiv_control_standard_new |
Date: |
Mon, 17 May 2004 12:45:05 +0100 |
zkoza writes:
> First, its not true that "D/E is taken to be the maximum of the
> ratios D_i/E_i.". As a matter of fact the algorithm uses the ratio
> E/D computed as the maximum of the ratios E_i/D_i.
>
> Then there's an error in the formula "h_new = h_old * S *
> (E/D)^(1/(q+1))" which should read h_new = h_old * S *
> (E/D)^(-1/(q+1))
>
> It might also be helpful to mention that the scaling factor for h
> is always between 1/5 and 5.
Thanks for the bug report. I'll update the documentation for the next
release.
--
Brian Gough
Network Theory Ltd,
Publishing Free Software Manuals --- http://www.network-theory.co.uk/