Extrapolation estimates a value outside the range of known data or estimates the limit of a convergent approximation sequence. Polynomial extrapolation extends an interpolating polynomial beyond its data interval, while Richardson extrapolation combines approximations with known error orders to cancel leading errors.
Extrapolation
See also
Interpolation, Polynomial Interpolation, Richardson ExtrapolationExplore with Wolfram|Alpha
References
Stoer, J. and Bulirsch, R. Introduction to Numerical Analysis, 3rd ed. New York: Springer-Verlag, 2002.Cite this as:
Weisstein, Eric W. "Extrapolation." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/Extrapolation.html