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General numerical methods
Numerical method for estimating the growth rate of the rounding error in uniform metric
M. I. Zuev, S. I. Serdyukova Meshcheryakov Laboratory of Information Technologies, Joint Institute for Nuclear Research, 141980, Dubna, Moscow oblast, Russia
Abstract:
A numerico-analytical algorithm for estimating the rounding errors in the uniform metric is developed. Their boundedness is established over the entire range of calculating the current-voltage characteristics of long Josephson junctions using the proposed second-order scheme. For a system of two difference equations as an example, it is shown how the growth rate of rounding errors in the uniform metric can be analyzed numerically in the case of a power-law instability. In addition, estimates are obtained for the growth rate of the rounding errors in the uniform metric for the third-order Rusanov scheme. The calculations were carried out on the Govorun supercomputer using the REDUCE system.
Key words:
finite-difference methods, estimating the growth of rounding errors in the uniform metric, numerical method, REDUCE system, Govorun supercomputer.
Received: 16.02.2023 Revised: 20.03.2023 Accepted: 28.04.2023
Citation:
M. I. Zuev, S. I. Serdyukova, “Numerical method for estimating the growth rate of the rounding error in uniform metric”, Zh. Vychisl. Mat. Mat. Fiz., 63:9 (2023), 1438–1445; Comput. Math. Math. Phys., 63:9 (2023), 1580–1587
Linking options:
https://www.mathnet.ru/eng/zvmmf11612 https://www.mathnet.ru/eng/zvmmf/v63/i9/p1438
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