Bases: astropy.modeling.polynomial.OrthoPolynomialBase
Legendre 2D polynomial.
Defined as:
P_{nm}(x,y) = C_{n_m} L_n(x ) L_m(y)
Parameters: | x_degree : int
y_degree : int
x_domain : list or None
y_domain : list or None
x_window : list or None
y_window : list or None
param_dim : int
**params : dict
fixed: a dict :
tied: dict :
bounds: dict : eqcons: list :
ineqcons : list
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Methods Summary
deriv(x, y, *params) | Derivatives with repect to the coefficients. |
Methods Documentation
Derivatives with repect to the coefficients. This is an array with Legendre polynomials:
Lx0Ly0 Lx1Ly0...LxnLy0...LxnLym
Parameters: | x : ndarray
y : ndarray
params : throw away parameter
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Returns: | result : ndarray
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