arb/acb_dirichlet/chi_vec.c
2016-09-06 14:33:52 +02:00

51 lines
1.7 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_chi_vec(acb_ptr v, const acb_dirichlet_group_t G, const acb_dirichlet_char_t chi, slong nv, slong prec)
{
slong k;
ulong * a;
acb_dirichlet_powers_t t;
a = flint_malloc(nv * sizeof(ulong));
acb_dirichlet_ui_chi_vec(a, G, chi, nv);
acb_dirichlet_powers_init(t, chi->order, nv, prec);
acb_zero(v + 0);
for (k = 0; k < nv; k++)
{
if (a[k] != ACB_DIRICHLET_CHI_NULL)
acb_dirichlet_power(v + k, t, a[k], prec);
else
*(v + k) = *(v + 0);
}
acb_dirichlet_powers_clear(t);
flint_free(a);
}