I have a set of points (x, y) and need to monotonically interpolate between them. The resulting polynomial needs to be C2 continuous. Could you point me in the right direction? From what I've seen I cannot use cubic splines since they would have either monotonicity or C2-continuity, but not both. Is it necessary to go for quartic polynomials then?
2026-02-23 15:32:11.1771860731
What approach to take to parameterise a C2, monotonic, piecewise polynomial?
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