mirror of
https://github.com/vale981/arb
synced 2025-03-05 17:31:38 -05:00
57 lines
1.7 KiB
C
57 lines
1.7 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) 2013 Fredrik Johansson
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******************************************************************************/
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#include "bernoulli.h"
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void
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bernoulli_fmprb_ui(fmprb_t b, ulong n, long prec)
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{
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if (n < bernoulli_cache_num)
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{
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fmprb_set_fmpq(b, bernoulli_cache + n, prec);
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}
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else
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{
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int use_frac;
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use_frac = (n < BERNOULLI_SMALL_NUMER_LIMIT) || (n % 2 != 0);
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if (!use_frac)
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use_frac = (prec > global_prec(n));
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if (use_frac)
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{
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fmpq_t t;
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fmpq_init(t);
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bernoulli_fmpq_ui(t, n);
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fmprb_set_fmpq(b, t, prec);
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fmpq_clear(t);
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}
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else
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{
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bernoulli_fmprb_ui_zeta(b, n, prec);
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}
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}
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}
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