✦ LIBER ✦
An algorithm for least-squares fitting of cubic spline surfaces to functions on a rectilinear mesh over a rectangle
✍ Scribed by P. Dierckx
- Publisher
- Elsevier Science
- Year
- 1977
- Tongue
- English
- Weight
- 865 KB
- Volume
- 3
- Category
- Article
- ISSN
- 0377-0427
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✦ Synopsis
In this paper a method is presented for fitting, in the least-squares sense, a bivariate cubic spline function to values of a dependent variable, specified at points on a rectangular grid in the plane of the independent variables. Products of B-splines are used to represent the bicubic splines. The coefficients in this representation are determined by solving a set of one-dimensional leastsquares problems.