mirror of
https://github.com/vale981/arb
synced 2025-03-04 17:01:40 -05:00
46 lines
1.3 KiB
C
46 lines
1.3 KiB
C
/*
|
|
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);
|
|
}
|
|
|