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32 lines
895 B
C
32 lines
895 B
C
/*
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Copyright (C) 2012 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 "arb_poly.h"
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void
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_arb_poly_integral(arb_ptr res, arb_srcptr poly, slong len, slong prec)
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{
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slong k = len - 1;
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for (k = len - 1; k > 0; k--)
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arb_div_ui(res + k, poly + k - 1, k, prec);
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arb_zero(res);
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}
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void
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arb_poly_integral(arb_poly_t res, const arb_poly_t poly, slong prec)
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{
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arb_poly_fit_length(res, poly->length + 1);
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_arb_poly_integral(res->coeffs, poly->coeffs, poly->length + 1, prec);
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_arb_poly_set_length(res, poly->length + 1);
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_arb_poly_normalise(res);
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}
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