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MathGroup Archive 2003

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Re: spline derivatives

  • To: mathgroup at smc.vnet.net
  • Subject: [mg39293] Re: spline derivatives
  • From: christopherpurcell <christopherpurcell at mac.com>
  • Date: Sun, 9 Feb 2003 04:51:58 -0500 (EST)
  • Sender: owner-wri-mathgroup at wolfram.com

The Interpolation routine can be differentiated, and it will provide 
similar capability (piecewise polynomial interpolation) as SplineFit. 
To handle self intersecting space curves you will need to interpolate 
on each parametric coordinate separately.


> I fitted a curve (data points)  with the function SpllineFit and found 
> even
> spaced points in the spline with SplineEvenSamplePoints function  
> (Murray,
> [mg37649])  but I do no know how to estimate the derivative in each 
> point.
>
> Thanks for your attention
>
> Eduardo



Christopher Purcell
DRDC-Atlantic, 9 Grove St., PO Box 1012,
Dartmouth, NS Canada B2Y 3Z7
Tel: 902-426-3100-x389
Fax: 902-426-9654
chris.purcell at drdc-rddc.gc.ca



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