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# scipy.optimize.LbfgsInvHessProduct.adjoint

`LbfgsInvHessProduct.``adjoint`()

  Hermitian adjoint.

  Returns the Hermitian adjoint of self, aka the Hermitian conjugate or Hermitian transpose. For a complex matrix, the Hermitian adjoint is equal to the conjugate transpose.

  Can be abbreviated self.H instead of self.adjoint().

  Returns: | A_H : LinearOperator Hermitian adjoint of self.