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https://github.com/vale981/arb
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44 lines
1.6 KiB
C
44 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) 2016 Pascal Molin
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******************************************************************************/
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#include "acb_dirichlet.h"
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/* char n has exponents = log[k]*PHI[k] / gcd and order expo / gcd
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* so that log = expo[k] */
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void
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acb_dirichlet_char_conrey(acb_dirichlet_char_t chi, const acb_dirichlet_group_t G, const acb_dirichlet_conrey_t x)
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{
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ulong k;
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chi->q = G->q;
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chi->n = x->n;
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chi->parity = acb_dirichlet_conrey_parity(G, x);
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chi->conductor = acb_dirichlet_conrey_conductor(G, x);
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for (k = 0; k < G->num; k++)
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chi->expo[k] = (x->log[k] * G->PHI[k]) % G->expo;
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/* optional: divide by gcd to obtain true order */
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acb_dirichlet_char_normalize(chi, G);
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}
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