arb_fpwrap_double_lgamma, arb_fpwrap_cdouble_lgamma
Synopsis
#include <flint/arb_fpwrap.h>int arb_fpwrap_double_lgamma(double * res, double x, int flags)sourceint arb_fpwrap_cdouble_lgamma(complex_double * res, complex_double x, int flags)sourceCompute \log \Gamma(x) (arb_lgamma, acb_lgamma); the real version requires x > 0, the complex version gives the principal branch of the log-gamma function.
Cite this page
The FLINT team, “arb_fpwrap_double_lgamma, arb_fpwrap_cdouble_lgamma (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_lgamma.html (generated 2026-10-20).
@misc{flint-doc-arb-fpwrap-arb-fpwrap-double-lgamma,
author = {{The FLINT team}},
title = {{arb\_fpwrap\_double\_lgamma, arb\_fpwrap\_cdouble\_lgamma (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_lgamma.html},
note = {Generated 2026-10-20}
}