Title :
Efficient cubic spline fit
Author :
Kazakos, Dimitri ; Dimitriadis, Basile
Author_Institution :
State University of New York at Buffalo, Amherst, N. Y.
Abstract :
A new method is presented for fitting a cubic spline (piecewise cubic polynomial with two derivatives continuous at the joints) to a set of n equispaced data. The method exploits the eigenfunction-eigenvalue expansion of a particular sparse matrix, and determines the piecewise polynomial coefficients in

operations.
Keywords :
Data analysis; Eigenvalues and eigenfunctions; Equations; Numerical analysis; Pattern recognition; Polynomials; Process control; Signal processing; Sparse matrices; Spline;
Conference_Titel :
Acoustics, Speech, and Signal Processing, IEEE International Conference on ICASSP '77.
DOI :
10.1109/ICASSP.1977.1170164