[FFmpeg-devel] [PATCH] doc/eval: fix/extend documentation for taylor() function

Michael Niedermayer michaelni at gmx.at
Thu Jan 31 00:05:09 CET 2013


On Wed, Jan 30, 2013 at 11:52:11PM +0100, Stefano Sabatini wrote:
> On date Wednesday 2013-01-30 00:09:00 +0100, Michael Niedermayer encoded:
> > On Sat, Jan 26, 2013 at 11:31:34AM +0100, Stefano Sabatini wrote:
> [...]
> > > diff --git a/doc/eval.texi b/doc/eval.texi
> > > index dbe9381..7de82f9 100644
> > > --- a/doc/eval.texi
> > > +++ b/doc/eval.texi
> > > @@ -163,13 +163,20 @@ evaluation of @var{y}, return 0 otherwise.
> > >  Evaluate @var{x}, and if the result is zero return the evaluation
> > >  result of @var{y}, otherwise the evaluation result of @var{z}.
> > >  
> > > - at item taylor(expr, x) taylor(expr, x, id)
> > > -Evaluate a taylor series at x.
> > > -expr represents the LD(id)-th derivates of f(x) at 0. If id is not specified
> > > -then 0 is assumed.
> > > -note, when you have the derivatives at y instead of 0
> > > -taylor(expr, x-y) can be used
> > > -When the series does not converge the results are undefined.
> > > + at item taylor(expr, x)
> > > + at item taylor(expr, x, id)
> > > +Evaluate a Taylor series at @var{x}, given an expression representing
> > > +the @code{ld(id)}-th derivative of a function.
> > 
> > the 1st derivative of f(x) is f´(x) which is a function itself
> > an expression of ld(id) constraint to ld(id)=1 is a scalar value
> > thus this makes no sense
> 
> I missed the "at 0" and forgot to update the patch, updated.
> -- 
> FFmpeg = Frightening and Frightening Mere Philosofic Elastic Genius

>  eval.texi |   21 ++++++++++++++-------
>  1 file changed, 14 insertions(+), 7 deletions(-)
> df7fc988759164d2aa61059f1ac9126eecca9dc0  0002-doc-eval-fix-extend-documentation-for-taylor-functio.patch
> From f4b8e8206e26e8296df7016b3d6a6a13be0234b0 Mon Sep 17 00:00:00 2001
> From: Stefano Sabatini <stefasab at gmail.com>
> Date: Tue, 22 Jan 2013 23:53:39 +0100
> Subject: [PATCH] doc/eval: fix/extend documentation for taylor() function

should be ok

[...]

-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

The misfortune of the wise is better than the prosperity of the fool.
-- Epicurus
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