Formally Verified Approximations of Definite Integrals (original) (raw)

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Article Dans Une Revue Journal of Automated Reasoning Année : 2019

Assia Mahboubi (1, 2) , Guillaume Melquiond (3) , Thomas Sibut-Pinote (2)

1 LS2N - équipe GALLINETTE - Gallinette : vers une nouvelle génération d'assistant à la preuve
2 SPECFUN - Symbolic Special Functions : Fast and Certified
3 TOCCATA - Formally Verified Programs, Certified Tools and Numerical Computations

Assia Mahboubi

LS2N - équipe GALLINETTE - Gallinette : vers une nouvelle génération d'assistant à la preuve

SPECFUN - Symbolic Special Functions : Fast and Certified

Guillaume Melquiond

TOCCATA - Formally Verified Programs, Certified Tools and Numerical Computations

CV

Thomas Sibut-Pinote

SPECFUN - Symbolic Special Functions : Fast and Certified

Résumé

Finding an elementary form for an antiderivative is often a difficult task, so numerical integration has become a common tool when it comes to making sense of a definite integral. Some of the numerical integration methods can even be made rigorous: not only do they compute an approximation of the integral value but they also bound its inaccuracy. Yet numerical integration is still missing from the toolbox when performing formal proofs in analysis. This paper presents an efficient method for automatically computing and proving bounds on some definite integrals inside the Coq formal system. Our approach is not based on traditional quadrature methods such as Newton-Cotes formulas. Instead, it relies on computing and evaluating antiderivatives of rigorous polynomial approximations, combined with an adaptive domain splitting. Our approach also handles improper integrals, provided that a factor of the integrand belongs to a catalog of identified integrable functions. This work has been integrated to the CoqInterval library.

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Soumis le : jeudi 15 mars 2018-14:39:17

Dernière modification le : lundi 19 janvier 2026-16:46:18

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hal-01630143 , version 1 (07-11-2017)

hal-01630143 , version 2 (15-03-2018)

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Assia Mahboubi, Guillaume Melquiond, Thomas Sibut-Pinote. Formally Verified Approximations of Definite Integrals. Journal of Automated Reasoning, 2019, 62 (2), pp.281-300. ⟨10.1007/s10817-018-9463-7⟩. ⟨hal-01630143v2⟩

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