AAA interpolation of equispaced data

We propose AAA rational approximation as a method for interpolating or approximating smooth functions from equispaced data samples. Although it is always better to approximate from large numbers of samples if they are available, whether equispaced or not, this method often performs impressively even...

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Main Authors: Huybrechs, D, Trefethen, LN
Format: Internet publication
Language:English
Published: 2022
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author Huybrechs, D
Trefethen, LN
author_facet Huybrechs, D
Trefethen, LN
author_sort Huybrechs, D
collection OXFORD
description We propose AAA rational approximation as a method for interpolating or approximating smooth functions from equispaced data samples. Although it is always better to approximate from large numbers of samples if they are available, whether equispaced or not, this method often performs impressively even when the sampling grid is fairly coarse. In most cases it gives more accurate approximations than other methods.
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spelling oxford-uuid:1dc1d6bc-e0d3-4355-9db7-c60ead3aa5cc2023-06-09T09:10:40ZAAA interpolation of equispaced dataInternet publicationhttp://purl.org/coar/resource_type/c_7ad9uuid:1dc1d6bc-e0d3-4355-9db7-c60ead3aa5ccEnglishSymplectic Elements2022Huybrechs, DTrefethen, LNWe propose AAA rational approximation as a method for interpolating or approximating smooth functions from equispaced data samples. Although it is always better to approximate from large numbers of samples if they are available, whether equispaced or not, this method often performs impressively even when the sampling grid is fairly coarse. In most cases it gives more accurate approximations than other methods.
spellingShingle Huybrechs, D
Trefethen, LN
AAA interpolation of equispaced data
title AAA interpolation of equispaced data
title_full AAA interpolation of equispaced data
title_fullStr AAA interpolation of equispaced data
title_full_unstemmed AAA interpolation of equispaced data
title_short AAA interpolation of equispaced data
title_sort aaa interpolation of equispaced data
work_keys_str_mv AT huybrechsd aaainterpolationofequispaceddata
AT trefethenln aaainterpolationofequispaceddata