Calculating elements of matrix functions using divided differences

@article{Barash2021CalculatingEO,
  title={Calculating elements of matrix functions using divided differences},
  author={Lev Yu. Barash and Stefan G{\"u}ttel and Itay Hen},
  journal={ArXiv},
  year={2021},
  volume={abs/2107.14124}
}
Lev Barash, Stefan Güttel, and Itay Hen 4, ∗ Landau Institute for Theoretical Physics, 142432 Chernogolovka, Russia Department of Mathematics, The University of Manchester, M13 9PL Manchester, United Kingdom Information Sciences Institute, University of Southern California, Marina del Rey, California 90292, USA Department of Physics and Astronomy and Center for Quantum Information Science & Technology, University of Southern California, Los Angeles, California 90089, USA 

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