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/*
Copyright (C) 2017 Fredrik Johansson
This file is part of Arb.
Arb is free software: you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License (LGPL) as published
by the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version. See <http://www.gnu.org/licenses/>.
*/
#include "acb_hypgeom.h"
void
acb_hypgeom_dilog_zero(acb_t res, const acb_t z, slong prec)
{
if (prec < 40000 ||
(arf_cmpabs_2exp_si(arb_midref(acb_realref(z)), -prec / 1000) < 0
&& arf_cmpabs_2exp_si(arb_midref(acb_imagref(z)), -prec / 1000) < 0))
{
acb_hypgeom_dilog_zero_taylor(res, z, prec);
}
else
{
acb_t z0;
acb_init(z0);
acb_hypgeom_dilog_bitburst(res, z0, z, prec);
acb_hypgeom_dilog_zero_taylor(z0, z0, prec);
acb_add(res, res, z0, prec);
acb_clear(z0);
}
}
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