Improvements in the discrete-dipole approximation method of computing scattering and absorption.

@article{Flatau1997ImprovementsIT,
  title={Improvements in the discrete-dipole approximation method of computing scattering and absorption.},
  author={Piotr J. Flatau},
  journal={Optics letters},
  year={1997},
  volume={22 16},
  pages={1205-7}
}
Improvements in complex-conjugate gradient algorithms applied to the discrete-dipole approximation are reported. It is shown that computational time is reduced by use of the stabilized version of the biconjugate gratings algorithm, with diagonal left preconditioning. 
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