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A subroutine for approximation by cubic splines in the least squares sense

✍ Scribed by J. Bok

Publisher
Elsevier Science
Year
1984
Tongue
English
Weight
44 KB
Volume
35
Category
Article
ISSN
0010-4655

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A Fortan subroutine calculates the least squares approximation to n data values con~n~ag ~ erro~ ~ to non-negative second divided differences (convexity). The method employs a dual active set qua~ta~ technique that allows several corcavities of an iterate to ,he corrected simul~..eo'~ly, whk:h is a