simple txt file with columns
first column is the time, second the X velocity value, third the Y
velocity value
and I want to fft each components of velocity to get the frequency of
oscillations.
(sry for my bad english)

On 10 avr, 18:16, "William Stein" <[EMAIL PROTECTED]> wrote:
> On Thu, Apr 10, 2008 at 9:15 AM, Nicoo <[EMAIL PROTECTED]> wrote:
>
> >  thx, I will try the fft() method, other question, how can I load my
> >  datas in a vector ?
>
> What format are your datas in?
>
>  -- William
>
>
>
>
>
> >  On 10 avr, 17:40, "William Stein" <[EMAIL PROTECTED]> wrote:
>
> > > On Thu, Apr 10, 2008 at 8:26 AM, Nicoo <[EMAIL PROTECTED]> wrote:
> >  > >  Hello there,
> >  > >  -I used matlab to fft some datas, I have .m file from matlab, is it
> >  > >  possible to load it in sagemath and use it ?
>
> >  > No, the Sage programming language is Python, which is as
> >  > different from Matlab's language as Mathematica is different
> >  > than Matlab.
>
> >  > Sage does have fft functionality itself though:
>
> >  > sage: v = vector(RDF, 10000, range(10000))
> >  > sage: time w = v.fft()
> >  > CPU time: 0.00 s,  Wall time: 0.00 s
>
> >  > It's also possible to use the Sage interfaces to Matlab/Octave...
>
> >  >  -- William
>
> --
> William Stein
> Associate Professor of Mathematics
> University of Washingtonhttp://wstein.org
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