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Re: zero crossing determination in octave?

From: J. Patrick Bedell
Subject: Re: zero crossing determination in octave?
Date: Fri, 5 Dec 2008 12:15:41 -0800

Hello again,
   Just to clarify, I am asking about estimating the zero crossings of
a waveform specified as (x,y) values, not finding the roots of a
polynomial or other function.


On Fri, Dec 5, 2008 at 12:07 PM, J. Patrick Bedell <address@hidden> wrote:
> Hello,
>   Is there an octave function to compute (possibly using
> interpolation) the points at which a given waveform crosses the x-axis
> (or a specified threshold value)?
>   Thanks!
>   Patrick

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