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https://github.com/vale981/arb
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33 lines
944 B
C
33 lines
944 B
C
/*
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Copyright (C) 2017 Fredrik Johansson
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This file is part of Arb.
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Arb is free software: you can redistribute it and/or modify it under
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the terms of the GNU Lesser General Public License (LGPL) as published
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by the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version. See <http://www.gnu.org/licenses/>.
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*/
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#include "acb_hypgeom.h"
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void
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acb_hypgeom_dilog_zero(acb_t res, const acb_t z, slong prec)
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{
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if (prec < 40000 ||
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(arf_cmpabs_2exp_si(arb_midref(acb_realref(z)), -prec / 1000) < 0
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&& arf_cmpabs_2exp_si(arb_midref(acb_imagref(z)), -prec / 1000) < 0))
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{
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acb_hypgeom_dilog_zero_taylor(res, z, prec);
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}
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else
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{
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acb_t z0;
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acb_init(z0);
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acb_hypgeom_dilog_bitburst(res, z0, z, prec);
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acb_hypgeom_dilog_zero_taylor(z0, z0, prec);
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acb_add(res, res, z0, prec);
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acb_clear(z0);
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}
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}
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