[SciPy-User] cubic spline interpolation using scipy

Paweł Kwaśniewski pawel.kw@gmail....
Fri Nov 23 03:27:11 CST 2012


Once you have your spline, you can use interpolate.splev() function to
evaluate it on a given set of x values. If you look into the documentation
of this function you will see that it can also give you the derivatives -
in your case, if you want the first derivative at each point of the
interpolation, you should do the following:

dy = interpolate.splev(x,tck,der=1)

That's it.



2012/11/22 Stéphanie haaaaaaaa <flower_des_iles@hotmail.com>

> [4,6,25,12]
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