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hal.structure.identifierLithe and fast algorithmic number theory [LFANT]
dc.contributor.authorJOHANSSON, Fredrik
hal.structure.identifierPerformance et Qualité des Algorithmes Numériques [PEQUAN]
dc.contributor.authorMEZZAROBBA, Marc
dc.date.accessioned2024-04-04T03:05:06Z
dc.date.available2024-04-04T03:05:06Z
dc.date.issued2018
dc.identifier.issn1064-8275
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/193214
dc.description.abstractEnWe describe a strategy for rigorous arbitrary-precision evaluation of Legendre polynomials on the unit interval and its application in the generation of Gauss-Legendre quadrature rules. Our focus is on making the evaluation practical for a wide range of realistic parameters, corresponding to the requirements of numerical integration to an accuracy of about 100 to 100 000 bits. Our algorithm combines the summation by rectangular splitting of several types of expansions in terms of hypergeometric series with a fixed-point implementation of Bonnet's three-term recurrence relation. We then compute rigorous enclosures of the Gauss-Legendre nodes and weights using the interval Newton method. We provide rigorous error bounds for all steps of the algorithm. The approach is validated by an implementation in the Arb library, which achieves order-of-magnitude speedups over previous code for computing Gauss-Legendre rules with simultaneous high degree and precision.
dc.description.sponsorshipApproximation rapide et fiable - ANR-14-CE25-0018
dc.language.isoen
dc.publisherSociety for Industrial and Applied Mathematics
dc.subject.enGauss-Legendre quadrature
dc.subject.eninterval arithmetic AMS subject classifications 65Y99
dc.subject.enarbitrary-precision arithmetic
dc.subject.eninterval arithmetic
dc.subject.enLegendre polynomials
dc.subject.en65G99
dc.subject.en33C45
dc.subject.enGauss–Legendre quadrature
dc.title.enFast and rigorous arbitrary-precision computation of Gauss-Legendre quadrature nodes and weights
dc.typeArticle de revue
dc.identifier.doi10.1137/18M1170133
dc.subject.halInformatique [cs]/Analyse numérique [cs.NA]
dc.subject.halInformatique [cs]/Logiciel mathématique [cs.MS]
dc.identifier.arxiv1802.03948
bordeaux.journalSIAM Journal on Scientific Computing
bordeaux.pageC726-C747
bordeaux.volume40
bordeaux.hal.laboratoriesInstitut de Mathématiques de Bordeaux (IMB) - UMR 5251*
bordeaux.issue6
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionBordeaux INP
bordeaux.institutionCNRS
bordeaux.peerReviewedoui
hal.identifierhal-01705612
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01705612v1
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