bfieldtools.sphtools.dphiylm¶
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bfieldtools.sphtools.dphiylm(l, m, theta, phi)¶ Derivative of Ylm with respect to phi dYlm/dphi.
- Parameters
- l: int
degree of Ylm
- m: int
order of Ylm
- theta: Nx1 array
evaluation points, theta at spherical coordinates
- phi: Nx1 array
evaluation points, phi at spherical coordinates
- Returns
- dphiylm: Nx1 array
dYlm/dphi at (theta, phi).