Response surface: Parametric approximation

Taylor approximation

Refer to Linear and Quadratic Taylor Expansions.

LinearTaylor(*args)	First order polynomial response surface by Taylor expansion.
QuadraticTaylor(*args)	Second order polynomial response surface by Taylor expansion.

Least squares approximation

LinearLeastSquares(*args)	First order polynomial response surface by least squares.
QuadraticLeastSquares(*args)	Second order polynomial response surface by least squares.