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You could determine the coefficients of a cubic spline, then
determine analytically the extrema and inflection points on the
cubic equation that defines each interval (there where the roots of
the parabolic that is the first order derivative of the cubic are
within the interval).<br>
<br>
See here for setting up the spline:
<a class="moz-txt-link-freetext" href="http://en.wikipedia.org/wiki/Spline_interpolation">http://en.wikipedia.org/wiki/Spline_interpolation</a><br>
<br>
Best wishes, <br>
<br>
Jasper.<br>
<br>
<br>
<br>
<div class="moz-cite-prefix">On 2/19/2014 11:31, bomber1978 [via
Scilab / Xcos - Mailing Lists Archives] wrote:<br>
</div>
<blockquote class=" cite"
id="mid_1392805906969_4028741_post_n3_nabble_com"
cite="mid:1392805906969-4028741.post@n3.nabble.com" type="cite">Hi
all,
<br>
<br>
I have a random 2D-curve which is defined by a set of points (I
don't know the equation of the curve), obtained by interpolation.
<br>
How can I find the maximum, minimum, & inflexion points on
this curve.
<br>
<br>
Thank you very much! <br>
<br>
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