Abstract
In this paper, we consider the use of bounded-deterioration quasi-Newton methods implemented in floating-point arithmetic to find solutions to F(x)=0 where only inaccurate F-values are available. Our analysis is for the case where the relative error in F is less than one. We obtain theorems specifying local rates of improvement and limiting accuracies depending on the nearness to Newton’s method of the basic algorithm, the accuracy of its implementation, the relative errors in the function values, the accuracy of the solutions of the linear system for the Newton steps, and the unit-rounding errors in the addition of the Newton steps.
Research sponsored by DOE DE-AS05-82ER13016, ARO DAAG-79-C-0124, NSF MCS81-16779. This work was supported in part by the International Business Machine Corporation, Palo Alto Scientific Center, Palo Alto, CA.
Research sponsored by DOE DE-AS05-82ER13016.
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© 1984 The Mathematical Programming Society, Inc.
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Dennis, J.E., Walker, H.F. (1984). Inaccuracy in quasi-Newton methods: Local improvement theorems. In: Korte, B., Ritter, K. (eds) Mathematical Programming at Oberwolfach II. Mathematical Programming Studies, vol 22. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0121009
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DOI: https://doi.org/10.1007/BFb0121009
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