Uniform Asymptotic Expansions for Exponential Integrals E_ n ( x ) and Bickley Functions Ki

DOI10.1145/356056.356063zbMath0545.33002OpenAlexW2074868756MaRDI QIDQ3336058

Donald E. Amos

Publication date: 1983

Published in: ACM Transactions on Mathematical Software (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1145/356056.356063

zbMATH Keywords

gamma functionmodified Bessel functionpsi functionexponential integralsBickley functions

Mathematics Subject Classification ID

Gamma, beta and polygamma functions (33B15) Asymptotic approximations, asymptotic expansions (steepest descent, etc.) (41A60) Bessel and Airy functions, cylinder functions, ({}_0F_1) (33C10) Approximation by other special function classes (41A30) Other special functions (33E99)

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