Which Alternative for Solving Dual Fuzzy Nonlinear Equations Is More Precise?

To answer the question stated in the title, we present and compare two approaches: first, a standard approach for solving dual fuzzy nonlinear systems (DFN-systems) based on Newton’s method, which uses 2D FN representation and second, the new approach, based on multidimensional fuzzy arithmetic (MF-...

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Main Authors: Joanna Kołodziejczyk, Andrzej Piegat, Wojciech Sałabun
Format: Article
Language:English
Published: MDPI AG 2020-09-01
Series:Mathematics
Subjects:
Online Access:https://www.mdpi.com/2227-7390/8/9/1507
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author Joanna Kołodziejczyk
Andrzej Piegat
Wojciech Sałabun
author_facet Joanna Kołodziejczyk
Andrzej Piegat
Wojciech Sałabun
author_sort Joanna Kołodziejczyk
collection DOAJ
description To answer the question stated in the title, we present and compare two approaches: first, a standard approach for solving dual fuzzy nonlinear systems (DFN-systems) based on Newton’s method, which uses 2D FN representation and second, the new approach, based on multidimensional fuzzy arithmetic (MF-arithmetic). We use a numerical example to explain how the proposed MF-arithmetic solves the DFN-system. To analyze results from the standard and the new approaches, we introduce an imprecision measure. We discuss the reasons why imprecision varies between both methods. The imprecision of the standard approach results (roots) is significant, which means that many possible values are excluded.
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spelling doaj.art-f741b228f01c4e3dbd2a4a414b676ca52023-11-20T12:36:31ZengMDPI AGMathematics2227-73902020-09-0189150710.3390/math8091507Which Alternative for Solving Dual Fuzzy Nonlinear Equations Is More Precise?Joanna Kołodziejczyk0Andrzej Piegat1Wojciech Sałabun2Research Team on Intelligent Decision Support Systems, Department of Artificial Intelligence Methods and Applied Mathematics, Faculty of Computer Science and Information Technology, West Pomeranian University of Technology in Szczecin ul. Żołnierska 49, 71-210 Szczecin, PolandResearch Team on Intelligent Decision Support Systems, Department of Artificial Intelligence Methods and Applied Mathematics, Faculty of Computer Science and Information Technology, West Pomeranian University of Technology in Szczecin ul. Żołnierska 49, 71-210 Szczecin, PolandResearch Team on Intelligent Decision Support Systems, Department of Artificial Intelligence Methods and Applied Mathematics, Faculty of Computer Science and Information Technology, West Pomeranian University of Technology in Szczecin ul. Żołnierska 49, 71-210 Szczecin, PolandTo answer the question stated in the title, we present and compare two approaches: first, a standard approach for solving dual fuzzy nonlinear systems (DFN-systems) based on Newton’s method, which uses 2D FN representation and second, the new approach, based on multidimensional fuzzy arithmetic (MF-arithmetic). We use a numerical example to explain how the proposed MF-arithmetic solves the DFN-system. To analyze results from the standard and the new approaches, we introduce an imprecision measure. We discuss the reasons why imprecision varies between both methods. The imprecision of the standard approach results (roots) is significant, which means that many possible values are excluded.https://www.mdpi.com/2227-7390/8/9/1507fuzzy nonlinear systemsfuzzy arithmeticfuzzy calculusmultidimensional fuzzy arithmeticRDM fuzzy arithmeticfuzzy parametric form
spellingShingle Joanna Kołodziejczyk
Andrzej Piegat
Wojciech Sałabun
Which Alternative for Solving Dual Fuzzy Nonlinear Equations Is More Precise?
Mathematics
fuzzy nonlinear systems
fuzzy arithmetic
fuzzy calculus
multidimensional fuzzy arithmetic
RDM fuzzy arithmetic
fuzzy parametric form
title Which Alternative for Solving Dual Fuzzy Nonlinear Equations Is More Precise?
title_full Which Alternative for Solving Dual Fuzzy Nonlinear Equations Is More Precise?
title_fullStr Which Alternative for Solving Dual Fuzzy Nonlinear Equations Is More Precise?
title_full_unstemmed Which Alternative for Solving Dual Fuzzy Nonlinear Equations Is More Precise?
title_short Which Alternative for Solving Dual Fuzzy Nonlinear Equations Is More Precise?
title_sort which alternative for solving dual fuzzy nonlinear equations is more precise
topic fuzzy nonlinear systems
fuzzy arithmetic
fuzzy calculus
multidimensional fuzzy arithmetic
RDM fuzzy arithmetic
fuzzy parametric form
url https://www.mdpi.com/2227-7390/8/9/1507
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