From help-octave-request at bevo dot che dot wisc dot edu Tue Feb 11 11:52:20 2003 Subject: Re: polyfit weirdness From: Etienne Grossmann To: Miquel Cabanas Cc: Scott Lamb , Etienne Grossmann , help-octave@bevo.che.wisc.edu, Etienne Grossmann Date: Tue, 11 Feb 2003 17:58:11 +0000 On Tue, Feb 11, 2003 at 06:08:55PM +0100, Miquel Cabanas wrote: # hi, # # On Tue, Feb 11, 2003 at 10:25:12AM -0600, Scott Lamb wrote: # > Etienne Grossmann wrote: # > > A problem with order of magnitude of f1 and floating-point # > > limitations? # > > # > >cv1 = # > > 0.66528 0.79417 1.37189 1.59260 1.92606 # > > # > > Is that more like what you expected? # > # > Yes, it is, thanks. # > # > I'm a little disappointed Octave has this problem; I'd assumed # > it would be using gmp or something for arbitrary precision. # > Oh well. # # your example works perfectly well on my PC running GNU/Debian # 3.0r1 as you wrote it, i.e. without scaling f1 as Etienne # suggested. Thus, I would say this is not a problem of Octave # itself, but probably a problem of the particular version you're # running. # # Which OS, platform and Octave version are you using? Did you # compile it yourself? If not, where did you get it from? Plain 2.1.44 compiled here, Debian Woody, Linux 2.2.15 kernel, PII. # Miquel # # -- # Miquel E Cabanas ------------------------------------------------------ # SeRMN, Universitat Autonoma de Barcelona (Miquel dot Cabanas at uab dot es) # ------------------------------------------o-oo--ooo---ooo--oo-o-------- # # # # ------------------------------------------------------------- # Octave is freely available under the terms of the GNU GPL. # # Octave's home on the web: http://www.octave.org # How to fund new projects: http://www.octave.org/funding.html # Subscription information: http://www.octave.org/archive.html # ------------------------------------------------------------- # # # -- Etienne Grossmann ------ http://www.isr.ist.utl.pt/~etienne ------------------------------------------------------------- Octave is freely available under the terms of the GNU GPL. Octave's home on the web: http://www.octave.org How to fund new projects: http://www.octave.org/funding.html Subscription information: http://www.octave.org/archive.html -------------------------------------------------------------