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/*
Copyright (C) 2013 Fredrik Johansson
This file is part of Arb.
Arb is free software: you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License (LGPL) as published
by the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version. See <http://www.gnu.org/licenses/>.
*/
#include "arb_fmpz_poly.h"
void
_arb_fmpz_poly_evaluate_arb(arb_t res, const fmpz * f, slong len,
const arb_t x, slong prec)
{
if (len >= 6 && len >= 5 + 2500 / (FLINT_MAX(prec, 64) + 64))
{
/* todo: improve this tuning? */
if (prec > 1024)
{
slong fbits;
fbits = _fmpz_vec_max_bits(f, len);
fbits = FLINT_ABS(fbits);
if (fbits > prec / 2)
{
_arb_fmpz_poly_evaluate_arb_horner(res, f, len, x, prec);
return;
}
}
_arb_fmpz_poly_evaluate_arb_rectangular(res, f, len, x, prec);
return;
}
_arb_fmpz_poly_evaluate_arb_horner(res, f, len, x, prec);
}
void
arb_fmpz_poly_evaluate_arb(arb_t res, const fmpz_poly_t f, const arb_t a, slong prec)
{
_arb_fmpz_poly_evaluate_arb(res, f->coeffs, f->length, a, prec);
}
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