mirror of
https://github.com/vale981/arb
synced 2025-03-05 17:31:38 -05:00
f488a8b034
- split files, one for each function - use acb_dirichlet prefix everywhere - distinguish pairing / character value + fix bug on exponent
45 lines
1.6 KiB
C
45 lines
1.6 KiB
C
/*=============================================================================
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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
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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ARB is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with ARB; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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=============================================================================*/
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/******************************************************************************
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Copyright (C) 2015 Jonathan Bober
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Copyright (C) 2016 Fredrik Johansson
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Copyright (C) 2016 Pascal Molin
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******************************************************************************/
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#include "acb_dirichlet.h"
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void
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acb_dirichlet_chi(acb_t res, const acb_dirichlet_group_t G, const acb_dirichlet_char_t chi, ulong n, slong prec)
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{
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ulong expo;
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expo = acb_dirichlet_ui_chi(G, chi, n);
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if (expo == ACB_DIRICHLET_CHI_NULL)
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acb_zero(res);
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else
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{
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fmpq_t t;
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fmpq_init(t);
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fmpq_set_si(t, 2 * expo , chi->order.n);
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arb_sin_cos_pi_fmpq(acb_imagref(res), acb_realref(res), t, prec);
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fmpq_clear(t);
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}
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}
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