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What if I'm not very convincing?
(lemmy.blahaj.zone)
This is an excerpt from my math models textbook. It's about Lagrange Polynomials which is a technique that lets you fit a polynomial to a set of any number of unique points (x_1,y_1) ... (x_n,y_n) so long as all your x-values are different (otherwise it wouldn't be a function, and couldn't be a polynomial). The polynomial you'll calculate will be the unique, lowest degree polynomial that passes through all points.
I feel like the sentence also means "it's kinda obvious when you think about it, so we won't explain, but it's actually important, so you probably should make sure you agree".