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- W2046422374 abstract "Polynomials P(x) of arbitrary degree are fitted with or without constraints, to a given set of points (Xn, Yn), n = 1,…,N; N > 1, using the least squares method. A weight ωn may be assigned to each point and/or an error — or fluctuation — ΔYn to the respective Yn's. Two kinds of constraints may be specified: 1) Fixed subset of the polynomial's coefficients and 2) P(ξq) = ηq, q = 1,…,Q, Q > 0 for given points (ξq, ηq), q = 1,…,Q. The problem is reduced to a system of linear equations solved by the Gauss reduction technique." @default.
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- W2046422374 date "1989-03-01" @default.
- W2046422374 modified "2023-09-27" @default.
- W2046422374 title "Polyfit — A package for polynomial fitting" @default.
- W2046422374 cites W2029792539 @default.
- W2046422374 doi "https://doi.org/10.1016/0010-4655(89)90117-3" @default.
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