arb/acb_dirichlet/char_primitive.c

38 lines
1.5 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"
void
acb_dirichlet_char_primitive(acb_dirichlet_char_t chi0, const acb_dirichlet_group_t G0, const acb_dirichlet_group_t G, const acb_dirichlet_char_t chi)
{
chi0->q = chi->conductor;
chi0->parity = chi->parity;
chi0->conductor = chi->conductor;
acb_dirichlet_conrey_primitive(chi0->x, G, chi->x, chi->conductor);
acb_dirichlet_char_set_expo(chi0, G0);
/* optional: divide by gcd to obtain true order */
acb_dirichlet_char_normalize(chi0, G0);
}