[Pkg-octave-devel] Errors in octave-signal's testsuite

[Thomas Weber]

On Thu, Mar 15, 2012 at 12:48:53AM +0100, Rafael Laboissiere wrote:
> * Thomas Weber <tweber at debian.org> [2012-03-14 19:56]:
> 
> > On Wed, Mar 14, 2012 at 08:58:20AM +0100, Rafael Laboissiere wrote:
> > > Since I get the same values for a and b as yours, the only conceivable
> > > source of divergence is the filter function.  What does "which filter"
> > > yield for you?
> > 
> > I've put a .mat file with the variables after running your commands at 
> > http://people.debian.org/~tweber/logs/pei_tseng_notch.mat.lzma
> > 
> > Can you compare the variables with your workspace?
> 
> As I suspected, the divergence between your data and mine happen in
> the filter function.  I assume that we are using the same one, in
> /usr/lib/i386-linux-gnu/octave/3.6.1/oct/i486-pc-linux-gnu/filter.oct

Yes, although mine is in the 64 bit location.

> The only difference that I can imagine between our systems is the
> precision.  I am using a 32-bits system and I guess you are using a
> 64-bit system.  Which is the value of eps in your system?

octave:2> format long
octave:3> eps
ans =  2.22044604925031e-16

	Thomas