Problem 1017. Lagrange Interpolation

Created by Robert Canfield

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Given a set of measurements of dependent variables in a vector, Y, that vary with one independent variable in a vector, X, calculate the interpolating polynomial using Lagrange interpolation. Output is the interpolated value for a given value of x, as well as the vector of Lagrange polynomial coefficients.

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Last Solution submitted on Jun 21, 2025

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Aryaa Ravieshancar on 30 Oct 2014

Could you please explain the output (the order of arrangement of coefficients, etc)? With my program I'm getting the right coefficients (tried from wikipedia, etc) but they don't match yours. Only the interpolated value matches!

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Problem 1017. Lagrange Interpolation

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Problem 1017. Lagrange Interpolation

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