Resumen: We derive a new analytic representation of the error function erf z in the form of a convergent series whose terms are exponential and rational functions. The expansion holds uniformly in z in the double sector | arg(±z)| < π/4. The expansion is accompanied by realistic error bounds. Idioma: Inglés DOI: 10.1007/s00009-023-02297-2 Año: 2023 Publicado en: Mediterranean Journal of Mathematics 20, 3 (2023), [10 pp.] ISSN: 1660-5446 Factor impacto JCR: 1.1 (2023) Categ. JCR: MATHEMATICS rank: 98 / 490 = 0.2 (2023) - Q1 - T1 Categ. JCR: MATHEMATICS, APPLIED rank: 163 / 332 = 0.491 (2023) - Q2 - T2 Factor impacto CITESCORE: 1.8 - Mathematics (all) (Q2)