Least squares piecewise cubic curve fitting

By J. Ferguson, P. A. Staley

Communications of the ACM, Vol. 16 No. 6, Pages 380-382
10.1145/362248.362276

The matrices involved in a linear least squares formulation are determined for the problem of fitting piecewise cubic functions, those possessing a continuous derivative, to arrays of planar data.

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Least squares piecewise cubic curve fitting

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