A pretty fast Lagrange interpolation algorithm


Updated 31 Jul 2014

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Given values x, uses Lagrange interpolation to find F(x) and F'(x), where X and Y describe the function Y = F(X).
The syntax is similar to Matlab's interp1 function, except that the 4th input argument is the order of the polynomial used for interpolation.

I wrote this function to interpolate orbital positions of GPS satellites. Lagrange interpolation is well suited to this problem.

Cite As

Peter Cervelli (2023). lagrange.m (, MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2013b
Compatible with any release
Platform Compatibility
Windows macOS Linux
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