mirror of
https://github.com/vale981/arb
synced 2025-03-05 09:21:38 -05:00
29 lines
832 B
C
29 lines
832 B
C
/*
|
|
Copyright (C) 2016 Pascal Molin
|
|
|
|
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_dirichlet.h"
|
|
|
|
void
|
|
acb_dirichlet_pairing(acb_t res, const acb_dirichlet_group_t G, ulong m, ulong n, slong prec)
|
|
{
|
|
ulong expo;
|
|
expo = acb_dirichlet_ui_pairing(G, m, n);
|
|
if (expo == ACB_DIRICHLET_CHI_NULL)
|
|
acb_zero(res);
|
|
else
|
|
{
|
|
fmpq_t t;
|
|
fmpq_init(t);
|
|
fmpq_set_si(t, 2 * expo, G->expo);
|
|
arb_sin_cos_pi_fmpq(acb_imagref(res), acb_realref(res), t, prec);
|
|
fmpq_clear(t);
|
|
}
|
|
}
|