In mathematics, a set of n functions f1, f2, ..., fn is unisolvent (meaning "uniquely solvable") on a domain Ω if the vectors [ f 1 ( x 1 ) f 1 ( x 2...

solution, for instance, when one has a set of unisolvent functions, meaning a set of ⁠ n {\displaystyle n} ⁠ functions such that evaluating them at ⁠ n {\displaystyle...

Extrapolation Linear predictive analysis — linear extrapolation Unisolvent functions — functions for which the interpolation problem has a unique solution Regression...

slow as the Chebyshev nodes) and with the additional property of being a unisolvent point set. The Lebesgue constants also arise in another problem. Let p(x)...

points are the first known example (and up to now the only one) of a unisolvent point set (that is, the interpolating polynomial is unique) with minimal...