mirror of
https://github.com/vale981/arb
synced 2025-03-06 01:41:39 -05:00
46 lines
1.6 KiB
C
46 lines
1.6 KiB
C
/*=============================================================================
|
|
|
|
This file is part of ARB.
|
|
|
|
ARB is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
ARB is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with ARB; if not, write to the Free Software
|
|
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
|
|
=============================================================================*/
|
|
/******************************************************************************
|
|
|
|
Copyright (C) 2016 Pascal Molin
|
|
|
|
******************************************************************************/
|
|
|
|
#include "acb_dirichlet.h"
|
|
|
|
ulong
|
|
acb_dirichlet_ui_chi(const acb_dirichlet_group_t G, const acb_dirichlet_char_t chi, ulong n)
|
|
{
|
|
if (n_gcd(G->q, n) > 1)
|
|
{
|
|
return ACB_DIRICHLET_CHI_NULL;
|
|
}
|
|
else
|
|
{
|
|
ulong v = 0, k;
|
|
acb_dirichlet_conrey_t x;
|
|
acb_dirichlet_conrey_init(x, G);
|
|
acb_dirichlet_conrey_log(x, G, n);
|
|
for (k = 0; k < G->num; k++)
|
|
v = (v + chi->expo[k] * x->log[k]) % chi->order;
|
|
acb_dirichlet_conrey_clear(x);
|
|
return v;
|
|
}
|
|
}
|