McCoy Group References

LinearExpansionSurface

A surface with an evaluator built off of an expansion in some user specified basis

__init__(self, coefficients, basis=None, dimension=None): 

coefficients: np.ndarray

the expansion coefficients in the basis
basis: Iterable[function] | None

a basis of functions to use (defaults to power series)

evaluate(self, points, **kwargs): 

First we just apply the basis to the gridpoints, then we dot this into the coeffs