arb_fpwrap_double_exp_integral_ei, arb_fpwrap_cdouble_exp_integral_ei
Synopsis
#include <flint/arb_fpwrap.h>int arb_fpwrap_double_exp_integral_ei(double * res, double x, int flags)sourceint arb_fpwrap_cdouble_exp_integral_ei(complex_double * res, complex_double x, int flags)sourceCompute the exponential integral \operatorname{Ei}(x) (arb_hypgeom_ei, acb_hypgeom_ei).
Cite this page
The FLINT team, “arb_fpwrap_double_exp_integral_ei, arb_fpwrap_cdouble_exp_integral_ei (arb_fpwrap.h),” FLINT: Fast Library for Number Theory, documentation, version 3.7.0-dev, 2026. https://flintlib.org/doc/arb_fpwrap/arb_fpwrap_double_exp_integral_ei.html (generated 2026-10-20).
@misc{flint-doc-arb-fpwrap-arb-fpwrap-double-exp-integral-ei,
author = {{The FLINT team}},
title = {{arb\_fpwrap\_double\_exp\_integral\_ei, arb\_fpwrap\_cdouble\_exp\_integral\_ei (arb\_fpwrap.h)}},
howpublished = {FLINT: Fast Library for Number Theory, documentation, version 3.7.0-dev},
year = {2026},
url = {https://flintlib.org/doc/arb_fpwrap/arb_fpwrap_double_exp_integral_ei.html},
note = {Generated 2026-10-20}
}