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21 lines
679 B
C
21 lines
679 B
C
/*
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Copyright (C) 2016 Pascal Molin
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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 it under
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the terms of the GNU Lesser General Public License (LGPL) as published
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by the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version. See <http://www.gnu.org/licenses/>.
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*/
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#include "dirichlet.h"
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void
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dirichlet_char_mul(dirichlet_char_t c, const dirichlet_group_t G, const dirichlet_char_t a, const dirichlet_char_t b)
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{
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ulong k;
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for (k = 0; k < G->num ; k++)
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c->log[k] = nmod_add(a->log[k], b->log[k], G->P[k].phi);
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c->n = nmod_mul(a->n, b->n, G->mod);
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}
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