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Re: [Gnucap-devel] dc command
From: |
al davis |
Subject: |
Re: [Gnucap-devel] dc command |
Date: |
Wed, 18 Sep 2013 00:26:05 -0400 |
User-agent: |
KMail/1.13.7 (Linux/3.2.0-4-amd64; KDE/4.8.4; x86_64; ; ) |
On Tuesday 17 September 2013, Felix Salfelder wrote:
> also, the initial op has control 1, not 0 (1=scUSER looks
> better to me), so the tests still 'fail'.
That's what I meant by "questionable" .. different but not
necessarily wrong.
The old code didn't have that feature, so dc had stepcause
always 0.
On Tuesday 17 September 2013, Felix Salfelder wrote:
> > Questionable regressions:
> > Some tests, most notably trcurve*, give different
> > results. At first glance, the differences seem
> > insignificant, might be an improvement, but this needs to
> > be explained.
>
> the initial guess is different. in non pathological cases
> this guess it closer, but that doesnt mean the accepted
> solution will be better...
need to examine closely. Likely, new and old could be equally
good, both within tolerance, so the regression test just says
that something changed.