Amos, Donald E. Algorithm 683: A portable FORTRAN subroutine for exponential integrals of a complex argument. (English) Zbl 0900.65029 ACM Trans. Math. Softw. 16, No. 2, 178-182 (1990). Cited in 1 Document MSC: 65D20 Computation of special functions and constants, construction of tables 33E05 Elliptic functions and integrals Keywords:confluent hypergeometric functions; Ei principal valued integral; Miller algorithm; sine and cosine integrals Software:Algorithm 683 PDF BibTeX XML Cite \textit{D. E. Amos}, ACM Trans. Math. Softw. 16, No. 2, 178--182 (1990; Zbl 0900.65029) Full Text: DOI Link OpenURL Digital Library of Mathematical Functions: 1st item ‣ §6.21(iii) E 1 ( z ) , Si ( z ) , Ci ( z ) , Shi ( z ) , Chi ( z ) , ∈ z C ‣ §6.21 Software ‣ Computation ‣ Chapter 6 Exponential, Logarithmic, Sine, and Cosine Integrals 1st item ‣ §8.28(vii) Generalized Exponential Integral for Complex Argument and/or Parameter ‣ §8.28 Software ‣ Computation ‣ Chapter 8 Incomplete Gamma and Related Functions