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40 lines
870 B
C
40 lines
870 B
C
/*
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Copyright (C) 2014 Fredrik Johansson
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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 "acb.h"
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void
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acb_get_mag(mag_t u, const acb_t z)
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{
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if (arb_is_zero(acb_imagref(z)))
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{
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arb_get_mag(u, acb_realref(z));
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}
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else if (arb_is_zero(acb_realref(z)))
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{
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arb_get_mag(u, acb_imagref(z));
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}
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else
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{
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mag_t v;
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mag_init(v);
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arb_get_mag(u, acb_realref(z));
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arb_get_mag(v, acb_imagref(z));
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mag_mul(u, u, u);
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mag_addmul(u, v, v);
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mag_sqrt(u, u);
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mag_clear(v);
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}
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}
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