preconditioner

English

Etymology

From pre- +‎ conditioner.

Noun

preconditioner (plural preconditioners)

  1. (mathematics) A matrix that has a smaller condition number than another.
    • 2016, Tania Bakhos, Peter Kitanidis, Scott Ladenheim, Arvind K. Saibaba, Daniel Szyld, “Multipreconditioned GMRES for Shifted Systems”, in arXiv‎[1]:
      Furthermore, the multipreconditioned search space is shown to grow only linearly with the number of preconditioners.
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