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splines with derivative conditions at support points

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Maximilian Dio
Maximilian Dio 2021년 7월 6일
답변: Bruno Luong 2021년 7월 6일
Hi I am trying to cubically interpolate my data but I know the derivatives at these points too. I have only found the csape function to define the derivatives at the end points -> "clamped" however I could not find how to enforce the derivatives at the support points too.
Thanks for a response..
Regards max
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Maximilian Dio
Maximilian Dio 2021년 7월 6일
I can enforce the conditions in this for but I would like to have somethiing a build in function - this seems to be not so nice)
for i = 1:numberOfSegments
pp{i} = csape([x(i),x(i+1)],[y(i),y(i+1)],'complete',[dy(i),dy(i+1)]);
or even better a 5th order spline where the 3rd derivative is also continous...

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Bruno Luong
Bruno Luong 2021년 7월 6일
There is the option point-wise constraints (pntcond) of my FEX BSFK to achieve your goal.




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