__call__(self, theta, phi, dtheta=0, dphi=0, grid=True)
Input coordinates.
If :None:None:`grid` is False, evaluate the spline at points (theta[i], phi[i]), i=0, ..., len(x)-1
. Standard Numpy broadcasting is obeyed.
If :None:None:`grid` is True: evaluate spline at the grid points defined by the coordinate arrays theta, phi. The arrays must be sorted to increasing order.
Order of theta-derivative
Order of phi-derivative
Whether to evaluate the results on a grid spanned by the input arrays, or at points specified by the input arrays.
Evaluate the spline or its derivatives at given positions.
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