mirror of
https://github.com/vale981/arb
synced 2025-03-06 09:51:39 -05:00
52 lines
1.6 KiB
C
52 lines
1.6 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) 2016 Pascal Molin
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******************************************************************************/
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#include "acb_dirichlet.h"
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/* TODO: BSGS can reduce to nv mul */
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void
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acb_dirichlet_arb_quadratic_powers(arb_ptr v, slong nv, const arb_t x, slong prec)
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{
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slong i;
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arb_t dx, x2;
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arb_init(dx);
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arb_init(x2);
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arb_set(dx, x);
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arb_mul(x2, x, x, prec);
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for (i = 0; i < nv; i++)
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{
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if (i == 0)
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arb_one(v + i);
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else if (i == 1)
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arb_set_round(v + i, x, prec);
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else
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{
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arb_mul(dx, dx, x2, prec);
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arb_mul(v + i, v + i - 1, dx, prec);
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}
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}
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arb_clear(dx);
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arb_clear(x2);
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}
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