bfieldtools.sphtools.Vlm¶
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bfieldtools.sphtools.Vlm(l, m, theta, phi)¶ Vector basis function (Vlm) for r**(-l) component of the magnetic field. Normalization <Vlm,Vkn> = delta_lk,mn.
- Parameters
- l: int
degree of Vlm
- m: int
order of Vlm
- theta: Nx1 array
evaluation points, theta at spherical coordinates
- phi: Nx1 array
evaluation points, phi at spherical coordinates
- Returns
- Vlm: Nx3 array
Vlm at (theta, phi).