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24 lines
620 B
C
24 lines
620 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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ulong
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dirichlet_order_char(const dirichlet_group_t G, const dirichlet_char_t x)
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{
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ulong k, g;
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g = G->expo;
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for (k = 0; k < G->num; k++)
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g = n_gcd(g, G->PHI[k] * x->log[k]);
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return G->expo / g;
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}
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