Curve fitting by Lagrange interpolation

G. Bäckström

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Computers in Physicsarrow_drop_down

Computers in Physics

Article . 1993 . Peer-reviewed

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https://dx.doi.org/10.1063/1.1...

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Curve fitting by Lagrange interpolation

descriptionPublicationkeyboard_double_arrow_right Article 01 Mar 1993 English Publisher:AIP PublishingJournal:Computers in Physics, volume 7, pages 213-216 (issn: 0894-1866,

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Authors: G. Bäckström;

doi: 10.1063/1.168461

Curve fitting by Lagrange interpolation

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Abstract

It is demonstrated that interpolation by quadratic polynomials using the Lagrange formula may compete in accuracy with cubic spline interpolation, while being simpler to implement. It is also shown that Lagrange interpolation may easily be used to fit an almost arbitrary function to experimental data. FORTRAN routines for Lagrange interpolation as well as Lagrange fitting are supplied separately.

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Umeå University
Sweden

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