The approximating polynomial which has the smallest maximum deviation from the true function. It is closely approximated by the Chebyshev polynomials of the first kind.
Minimax Polynomial
See also
Elliptic Rational Function, Minimax ApproximationExplore with Wolfram|Alpha
Cite this as:
Weisstein, Eric W. "Minimax Polynomial." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/MinimaxPolynomial.html