Lagrange Interpolation

Version 1.0.0 (1.76 KB) by Alireza
the Lagrange interpolating polynomial is the unique polynomial of the lowest degree that interpolates a given set of data.
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Updated 30 Jan 2025

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Given a data set of coordinate pairs (xj,yj) with 0≤j≤k, the xj are called nodes and the yj are called values. The Lagrange polynomial L(x) has degree ≤k and assumes each value at the corresponding node, L(xj)=yj.

Cite As

Alireza (2026). Lagrange Interpolation (https://www.mathworks.com/matlabcentral/fileexchange/179884-lagrange-interpolation), MATLAB Central File Exchange. Retrieved .

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Created with R2024b
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1.0.0