mirror of
https://github.com/vale981/arb
synced 2025-03-06 09:51:39 -05:00
59 lines
1.6 KiB
C
59 lines
1.6 KiB
C
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/*=============================================================================
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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) 2013 Fredrik Johansson
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******************************************************************************/
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#include "acb.h"
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void
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acb_cos_pi(acb_t r, const acb_t z, long prec)
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{
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#define a acb_realref(z)
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#define b acb_imagref(z)
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arb_t sa, ca, sb, cb;
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arb_init(sa);
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arb_init(ca);
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arb_init(sb);
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arb_init(cb);
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arb_sin_cos_pi(sa, ca, a, prec);
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arb_const_pi(cb, prec);
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arb_mul(cb, cb, b, prec);
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arb_sinh_cosh(sb, cb, cb, prec);
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arb_mul(acb_realref(r), ca, cb, prec);
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arb_mul(acb_imagref(r), sa, sb, prec);
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arb_neg(acb_imagref(r), acb_imagref(r));
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arb_clear(sa);
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arb_clear(ca);
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arb_clear(sb);
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arb_clear(cb);
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#undef a
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#undef b
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}
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