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Cubic spline interpolation with second derivative at ends as zero

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Anirban Naskar
Anirban Naskar el 11 de Jun. de 2014
Comentada: Mahdi el 12 de Jun. de 2014
Hi all,
I need a function for cubic spline interpolation where second derivative at both the ends are zero (i.e. Natural or Free spline). My version of MATLAB does not allow to use "csape".
If not a function, atleast suggest some method to work around the above problem.
Please help!
Thanks, Anirban

Respuestas (1)

Mahdi
Mahdi el 11 de Jun. de 2014
Doesn't the spline function work?
  2 comentarios
Anirban Naskar
Anirban Naskar el 12 de Jun. de 2014
Hi,
Is there any technique by which I can use the spline function, giving additional boundary conditions that second derivative in the end as zero?
Mahdi
Mahdi el 12 de Jun. de 2014
My knowledge of splines isn't that good, but doesn't cubic splines already consider that the second derivative at the end is zero? So you can use spline(x,y,xx, 'cubic')?

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