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cubic spline

   Also found in: Wikipedia 0.06 sec.
cubic spline [′kyü·bik ′splīn]
(mathematics)
One of a collection of cubic polynomials used in interpolating a function whose value is specified at each of a collection of distinct ordered values,Xi(i=1, …,n), and whose slope is specified atX1andXn; one cubic polynomial is found for each interval, such that the interpolating system has the prescribed values at each of theXi, the prescribed slope atX1andXn, and a continuous slope at each of theXi.


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t],7/year) is the natural cubic spline function of calendar time with 7 degrees of freedom per year; ns([T.
The exposure-response curve for ozone and risk of mortality and the ... by Dominici, Francesca / Environmental Health Perspectives
The monthly averages were then used as nodes, and a cubic spline (e.
The presentation of temperature information in television broadcasts: ... by Edwards, Mark / National Weather Digest
The first covers Lagrangian interpolation, the second cubic spline interpolation; these are the two most commonly used interpolation methods.
Uncertainties in interpolated spectral data by Gardner, James L. / Journal of Research of the National Institute of Standards and Technology
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