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English
Etymology
From pre- + conditioner.
Noun
preconditioner (plural preconditioners)
- (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:Furthermore, the multipreconditioned search space is shown to grow only linearly with the number of preconditioners.