pymiediff.special.psi

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pymiediff.special.psi#

pymiediff.special.psi(n: Tensor, z: Tensor, **kwargs)#

Riccati-Bessel Function of the first kind

return Ricatti Bessel 1st kind as well as its derivatives

Parameters:

  • n (torch.Tensor) – integer order

  • z (torch.Tensor) – complex argument

  • kwargs – additional kwargs are ignored

Returns:

direct result and derivative

Return type:

torch.Tensor, torch.Tensor

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