well basically I need to get the function that passes through n k-tuples (in my particular case k is 4 and n is as big as needed) but the results of the function are rounded, I've already seen a way to do a multivariable Lagrange interpolation, but I'm not sure what can I do to compensate the rounding

closed as unclear what you're asking by Gro-Tsen, Stopple, Greg Martin, Stefan Waldmann, მამუკა ჯიბლაძე Dec 5 at 10:29

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