139 lines
3.8 KiB
C
139 lines
3.8 KiB
C
/*=============================================================================
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This file is part of FLINT.
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FLINT 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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FLINT 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 FLINT; 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) 2010 William Hart
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******************************************************************************/
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#ifndef MFPR_POLY_H
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#define MPFR_POLY_H
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#include <gmp.h>
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#include <mpfr.h>
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#include "flint.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct
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{
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__mpfr_struct * coeffs;
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slong length;
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slong alloc;
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mpfr_prec_t prec;
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} mpfr_poly_struct;
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/* fmpz_poly_t allows reference-like semantics for fmpz_poly_struct */
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typedef mpfr_poly_struct mpfr_poly_t[1];
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extern gmp_randstate_t mpfr_poly_randstate;
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#define MUL_INPLACE_CUTOFF 1000
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void mpfr_poly_init(mpfr_poly_t poly, mpfr_prec_t prec);
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void mpfr_poly_init2(mpfr_poly_t poly, slong alloc, mpfr_prec_t prec);
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void mpfr_poly_realloc(mpfr_poly_t poly, slong alloc);
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void mpfr_poly_fit_length(mpfr_poly_t poly, slong length);
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void mpfr_poly_clear(mpfr_poly_t poly);
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static __inline__
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void _mpfr_poly_set_length(mpfr_poly_t poly, slong length)
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{
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poly->length = length;
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}
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static __inline__
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void mpfr_poly_set_prec(mpfr_poly_t poly, mpfr_prec_t prec)
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{
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slong i;
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for (i = 0; i < poly->alloc; i++)
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mpfr_prec_round(poly->coeffs + i, prec, GMP_RNDN);
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poly->prec = prec;
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}
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void mpfr_poly_randinit(void);
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void mpfr_poly_randclear(void);
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void mpfr_poly_randtest(mpfr_poly_t poly, slong length);
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static __inline__
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void mpfr_poly_swap(mpfr_poly_t poly1, mpfr_poly_t poly2)
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{
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mpfr * tc;
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slong t;
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mpfr_prec_t tp;
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tc = poly1->coeffs;
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poly1->coeffs = poly2->coeffs;
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poly2->coeffs = tc;
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t = poly1->length;
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poly1->length = poly2->length;
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poly2->length = t;
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t = poly1->alloc;
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poly1->alloc = poly2->alloc;
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poly2->alloc = t;
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tp = poly1->prec;
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poly1->prec = poly2->prec;
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poly2->prec = tp;
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}
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void _mpfr_poly_mul_classical(mpfr * res, mpfr * in1, slong len1,
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mpfr * in2, slong len2, mpfr_prec_t prec);
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void mpfr_poly_mul_classical(mpfr_poly_t res, mpfr_poly_t poly1,
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mpfr_poly_t poly2);
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void _mpfr_poly_FHT(mpfr * coeffs, slong n, mpfr_prec_t prec);
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void _mpfr_poly_convolution_trans(mpfr * coeffs1,
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mpfr * coeffs2, slong n, mpfr_prec_t prec);
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void _mpfr_poly_revbin(mpfr * coeffs, slong n);
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void _mpfr_poly_scale(mpfr * coeffs, slong n);
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void _mpfr_poly_convolution_FHT(mpfr * coeffs1,
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mpfr * coeffs2, slong n, mpfr_prec_t prec);
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void mpfr_poly_mul_FHT(mpfr_poly_t res, mpfr_poly_t poly1,
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mpfr_poly_t poly2);
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int _mpfr_poly_bound_newton(double * inter, double * slope,
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mpfr * poly, slong len, mpfr_prec_t prec);
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void mpfr_poly_mul(mpfr_poly_t res, mpfr_poly_t poly1,
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mpfr_poly_t poly2, mpfr_prec_t fb);
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#ifdef __cplusplus
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}
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#endif
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#endif
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