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https://github.com/vale981/arb
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48 lines
1.5 KiB
C
48 lines
1.5 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) 2012, 2013 Fredrik Johansson
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******************************************************************************/
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#include "zeta.h"
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void
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zeta_ui_vec_odd(fmprb_ptr x, ulong start, long num, long prec)
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{
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long i, num_borwein;
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ulong cutoff;
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cutoff = 40 + 0.3 * prec;
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if (cutoff > start)
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{
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num_borwein = 1 + (cutoff - start) / 2;
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num_borwein = FLINT_MIN(num_borwein, num);
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}
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else
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num_borwein = 0;
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zeta_ui_vec_borwein(x, start, num_borwein, 2, prec);
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for (i = num_borwein; i < num; i++)
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zeta_ui(x + i, start + 2 * i, prec);
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}
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