{"id":"https://openalex.org/W2903792005","doi":"https://doi.org/10.1007/s11075-018-0642-8","title":"Exponential and trigonometrical fittings: user-friendly expressions for the coefficients","display_name":"Exponential and trigonometrical fittings: user-friendly expressions for the coefficients","publication_year":2018,"publication_date":"2018-12-13","ids":{"openalex":"https://openalex.org/W2903792005","doi":"https://doi.org/10.1007/s11075-018-0642-8","mag":"2903792005"},"language":"en","primary_location":{"id":"doi:10.1007/s11075-018-0642-8","is_oa":false,"landing_page_url":"https://doi.org/10.1007/s11075-018-0642-8","pdf_url":null,"source":{"id":"https://openalex.org/S117494069","display_name":"Numerical Algorithms","issn_l":"1017-1398","issn":["1017-1398","1572-9265"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Numerical Algorithms","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5014642191","display_name":"L.Gr. Ixaru","orcid":null},"institutions":[{"id":"https://openalex.org/I4210092312","display_name":"Horia Hulubei National Institute for R and D in Physics and Nuclear Engineering","ror":"https://ror.org/00d3pnh21","country_code":"RO","type":"facility","lineage":["https://openalex.org/I4210092312"]},{"id":"https://openalex.org/I33800924","display_name":"Academy of Romanian Scientists","ror":"https://ror.org/04ybnj478","country_code":"RO","type":"facility","lineage":["https://openalex.org/I33800924"]}],"countries":["RO"],"is_corresponding":true,"raw_author_name":"L. Gr. Ixaru","raw_affiliation_strings":["Academy of Romanian Scientists, 54 Splaiul Independen\u0163ei, 050094, Bucharest, Romania","Department of Theoretical Physics, \u201cHoria Hulubei\u201d National Institute of Physics and Nuclear Engineering, P.O. Box MG-6, Bucharest, Romania","Department of Theoretical Physics, \"Horia Hulubei\" National Institute of Physics and Nuclear Engineering, P.O. Box MG-6, Bucharest, Romania"],"affiliations":[{"raw_affiliation_string":"Academy of Romanian Scientists, 54 Splaiul Independen\u0163ei, 050094, Bucharest, Romania","institution_ids":["https://openalex.org/I33800924"]},{"raw_affiliation_string":"Department of Theoretical Physics, \u201cHoria Hulubei\u201d National Institute of Physics and Nuclear Engineering, P.O. Box MG-6, Bucharest, Romania","institution_ids":["https://openalex.org/I4210092312"]},{"raw_affiliation_string":"Department of Theoretical Physics, \"Horia Hulubei\" National Institute of Physics and Nuclear Engineering, P.O. Box MG-6, Bucharest, Romania","institution_ids":["https://openalex.org/I4210092312"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5014642191"],"corresponding_institution_ids":["https://openalex.org/I33800924","https://openalex.org/I4210092312"],"apc_list":{"value":2390,"currency":"EUR","value_usd":2990},"apc_paid":null,"fwci":0.8532,"has_fulltext":false,"cited_by_count":8,"citation_normalized_percentile":{"value":0.77409026,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":97},"biblio":{"volume":"82","issue":"3","first_page":"1085","last_page":"1096"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T13286","display_name":"Modeling and Simulation Systems","score":0.9936000108718872,"subfield":{"id":"https://openalex.org/subfields/1703","display_name":"Computational Theory and Mathematics"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T13286","display_name":"Modeling and Simulation Systems","score":0.9936000108718872,"subfield":{"id":"https://openalex.org/subfields/1703","display_name":"Computational Theory and Mathematics"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11416","display_name":"Numerical methods for differential equations","score":0.9925000071525574,"subfield":{"id":"https://openalex.org/subfields/2612","display_name":"Numerical Analysis"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11394","display_name":"Dynamics and Control of Mechanical Systems","score":0.977400004863739,"subfield":{"id":"https://openalex.org/subfields/2207","display_name":"Control and Systems Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/exponential-function","display_name":"Exponential function","score":0.7865291833877563},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.778485894203186},{"id":"https://openalex.org/keywords/theory-of-computation","display_name":"Theory of computation","score":0.7312139868736267},{"id":"https://openalex.org/keywords/trigonometry","display_name":"Trigonometry","score":0.6683613061904907},{"id":"https://openalex.org/keywords/trigonometric-functions","display_name":"Trigonometric functions","score":0.6503282785415649},{"id":"https://openalex.org/keywords/computation","display_name":"Computation","score":0.6210151314735413},{"id":"https://openalex.org/keywords/power-series","display_name":"Power series","score":0.5839197039604187},{"id":"https://openalex.org/keywords/set","display_name":"Set (abstract data type)","score":0.5543076395988464},{"id":"https://openalex.org/keywords/series","display_name":"Series (stratigraphy)","score":0.5431278347969055},{"id":"https://openalex.org/keywords/applied-mathematics","display_name":"Applied mathematics","score":0.5176628232002258},{"id":"https://openalex.org/keywords/trigonometric-polynomial","display_name":"Trigonometric polynomial","score":0.4787687361240387},{"id":"https://openalex.org/keywords/trigonometric-series","display_name":"Trigonometric series","score":0.4759273827075958},{"id":"https://openalex.org/keywords/interval-arithmetic","display_name":"Interval arithmetic","score":0.4677113890647888},{"id":"https://openalex.org/keywords/mathematical-analysis","display_name":"Mathematical analysis","score":0.40631067752838135},{"id":"https://openalex.org/keywords/calculus","display_name":"Calculus (dental)","score":0.3887007236480713},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.3305385112762451},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.13342270255088806},{"id":"https://openalex.org/keywords/geometry","display_name":"Geometry","score":0.11858958005905151}],"concepts":[{"id":"https://openalex.org/C151376022","wikidata":"https://www.wikidata.org/wiki/Q168698","display_name":"Exponential function","level":2,"score":0.7865291833877563},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.778485894203186},{"id":"https://openalex.org/C24858836","wikidata":"https://www.wikidata.org/wiki/Q844718","display_name":"Theory of computation","level":2,"score":0.7312139868736267},{"id":"https://openalex.org/C29001434","wikidata":"https://www.wikidata.org/wiki/Q8084","display_name":"Trigonometry","level":2,"score":0.6683613061904907},{"id":"https://openalex.org/C178009071","wikidata":"https://www.wikidata.org/wiki/Q93344","display_name":"Trigonometric functions","level":2,"score":0.6503282785415649},{"id":"https://openalex.org/C45374587","wikidata":"https://www.wikidata.org/wiki/Q12525525","display_name":"Computation","level":2,"score":0.6210151314735413},{"id":"https://openalex.org/C73905626","wikidata":"https://www.wikidata.org/wiki/Q206925","display_name":"Power series","level":2,"score":0.5839197039604187},{"id":"https://openalex.org/C177264268","wikidata":"https://www.wikidata.org/wiki/Q1514741","display_name":"Set (abstract data type)","level":2,"score":0.5543076395988464},{"id":"https://openalex.org/C143724316","wikidata":"https://www.wikidata.org/wiki/Q312468","display_name":"Series (stratigraphy)","level":2,"score":0.5431278347969055},{"id":"https://openalex.org/C28826006","wikidata":"https://www.wikidata.org/wiki/Q33521","display_name":"Applied mathematics","level":1,"score":0.5176628232002258},{"id":"https://openalex.org/C156760230","wikidata":"https://www.wikidata.org/wiki/Q1969650","display_name":"Trigonometric polynomial","level":3,"score":0.4787687361240387},{"id":"https://openalex.org/C120362076","wikidata":"https://www.wikidata.org/wiki/Q1149336","display_name":"Trigonometric series","level":2,"score":0.4759273827075958},{"id":"https://openalex.org/C191252586","wikidata":"https://www.wikidata.org/wiki/Q1671453","display_name":"Interval arithmetic","level":3,"score":0.4677113890647888},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.40631067752838135},{"id":"https://openalex.org/C2777686260","wikidata":"https://www.wikidata.org/wiki/Q144037","display_name":"Calculus (dental)","level":2,"score":0.3887007236480713},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.3305385112762451},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.13342270255088806},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.11858958005905151},{"id":"https://openalex.org/C199343813","wikidata":"https://www.wikidata.org/wiki/Q12128","display_name":"Dentistry","level":1,"score":0.0},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.0},{"id":"https://openalex.org/C34388435","wikidata":"https://www.wikidata.org/wiki/Q2267362","display_name":"Bounded function","level":2,"score":0.0},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0},{"id":"https://openalex.org/C151730666","wikidata":"https://www.wikidata.org/wiki/Q7205","display_name":"Paleontology","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1007/s11075-018-0642-8","is_oa":false,"landing_page_url":"https://doi.org/10.1007/s11075-018-0642-8","pdf_url":null,"source":{"id":"https://openalex.org/S117494069","display_name":"Numerical Algorithms","issn_l":"1017-1398","issn":["1017-1398","1572-9265"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Numerical Algorithms","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":15,"referenced_works":["https://openalex.org/W1993181674","https://openalex.org/W1994844806","https://openalex.org/W1999941187","https://openalex.org/W2009437712","https://openalex.org/W2015942421","https://openalex.org/W2105748997","https://openalex.org/W2111504665","https://openalex.org/W2139437359","https://openalex.org/W2140447202","https://openalex.org/W2162945468","https://openalex.org/W2304063493","https://openalex.org/W2394704231","https://openalex.org/W2603303124","https://openalex.org/W2803620469","https://openalex.org/W4249563570"],"related_works":["https://openalex.org/W2300282852","https://openalex.org/W1601647281","https://openalex.org/W2059079139","https://openalex.org/W60158073","https://openalex.org/W2010970866","https://openalex.org/W2619687392","https://openalex.org/W2805114793","https://openalex.org/W2903792005","https://openalex.org/W2953201992","https://openalex.org/W842151764"],"abstract_inverted_index":null,"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":1},{"year":2022,"cited_by_count":2},{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":3}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
