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34 lines
818 B
C
34 lines
818 B
C
/*
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Copyright (C) 2019 D.H.J Polymath
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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_dirichlet.h"
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static void
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_arb_inv_ui(arb_t res, ulong n, slong prec)
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{
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arb_set_ui(res, n);
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arb_inv(res, res, prec);
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}
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void
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acb_dirichlet_platt_beta(arb_t res, const arb_t t, slong prec)
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{
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arb_t u, v;
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arb_init(u);
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arb_init(v);
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arb_log(u, t, prec);
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arb_log(v, u, prec);
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arb_div(u, v, u, prec);
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_arb_inv_ui(res, 6, prec);
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arb_add(res, res, u, prec);
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arb_clear(u);
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arb_clear(v);
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}
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