arb/arb_mat.h

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/*=============================================================================
This file is part of ARB.
ARB is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
ARB is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with ARB; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
=============================================================================*/
/******************************************************************************
Copyright (C) 2012 Fredrik Johansson
******************************************************************************/
#ifndef ARB_MAT_H
#define ARB_MAT_H
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#ifdef ARB_MAT_INLINES_C
#define ARB_MAT_INLINE
#else
#define ARB_MAT_INLINE static __inline__
#endif
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#include "arb.h"
#include "fmpz_mat.h"
#include "fmpq_mat.h"
#include "perm.h"
#include "arb_poly.h"
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#ifdef __cplusplus
extern "C" {
#endif
typedef struct
{
arb_ptr entries;
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slong r;
slong c;
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arb_ptr * rows;
}
arb_mat_struct;
typedef arb_mat_struct arb_mat_t[1];
#define arb_mat_entry(mat,i,j) ((mat)->rows[i] + (j))
#define arb_mat_nrows(mat) ((mat)->r)
#define arb_mat_ncols(mat) ((mat)->c)
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ARB_MAT_INLINE arb_ptr
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arb_mat_entry_ptr(arb_mat_t mat, slong i, slong j)
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{
return arb_mat_entry(mat, i, j);
}
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/* Memory management */
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void arb_mat_init(arb_mat_t mat, slong r, slong c);
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void arb_mat_clear(arb_mat_t mat);
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ARB_MAT_INLINE void
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arb_mat_swap(arb_mat_t mat1, arb_mat_t mat2)
{
arb_mat_struct t = *mat1;
*mat1 = *mat2;
*mat2 = t;
}
/* Conversions */
void arb_mat_set(arb_mat_t dest, const arb_mat_t src);
void arb_mat_set_fmpz_mat(arb_mat_t dest, const fmpz_mat_t src);
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void arb_mat_set_round_fmpz_mat(arb_mat_t dest, const fmpz_mat_t src, slong prec);
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void arb_mat_set_fmpq_mat(arb_mat_t dest, const fmpq_mat_t src, slong prec);
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/* Random generation */
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void arb_mat_randtest(arb_mat_t mat, flint_rand_t state, slong prec, slong mag_bits);
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/* I/O */
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void arb_mat_printd(const arb_mat_t mat, slong digits);
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/* Comparisons */
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int arb_mat_eq(const arb_mat_t mat1, const arb_mat_t mat2);
int arb_mat_ne(const arb_mat_t mat1, const arb_mat_t mat2);
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int arb_mat_equal(const arb_mat_t mat1, const arb_mat_t mat2);
int arb_mat_overlaps(const arb_mat_t mat1, const arb_mat_t mat2);
int arb_mat_contains(const arb_mat_t mat1, const arb_mat_t mat2);
int arb_mat_contains_fmpq_mat(const arb_mat_t mat1, const fmpq_mat_t mat2);
int arb_mat_contains_fmpz_mat(const arb_mat_t mat1, const fmpz_mat_t mat2);
/* Special matrices */
void arb_mat_zero(arb_mat_t mat);
void arb_mat_one(arb_mat_t mat);
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void arb_mat_transpose(arb_mat_t mat1, const arb_mat_t mat2);
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/* Norms */
void arb_mat_bound_inf_norm(mag_t b, const arb_mat_t A);
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/* Arithmetic */
void arb_mat_neg(arb_mat_t dest, const arb_mat_t src);
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void arb_mat_add(arb_mat_t res, const arb_mat_t mat1, const arb_mat_t mat2, slong prec);
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void arb_mat_sub(arb_mat_t res, const arb_mat_t mat1, const arb_mat_t mat2, slong prec);
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void arb_mat_mul(arb_mat_t res, const arb_mat_t mat1, const arb_mat_t mat2, slong prec);
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void arb_mat_mul_classical(arb_mat_t C, const arb_mat_t A, const arb_mat_t B, slong prec);
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void arb_mat_mul_threaded(arb_mat_t C, const arb_mat_t A, const arb_mat_t B, slong prec);
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void arb_mat_sqr(arb_mat_t B, const arb_mat_t A, slong prec);
void arb_mat_sqr_classical(arb_mat_t B, const arb_mat_t A, slong prec);
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void arb_mat_pow_ui(arb_mat_t B, const arb_mat_t A, ulong exp, slong prec);
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/* Scalar arithmetic */
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ARB_MAT_INLINE void
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arb_mat_scalar_mul_2exp_si(arb_mat_t B, const arb_mat_t A, slong c)
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{
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slong i, j;
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for (i = 0; i < arb_mat_nrows(A); i++)
for (j = 0; j < arb_mat_ncols(A); j++)
arb_mul_2exp_si(arb_mat_entry(B, i, j), arb_mat_entry(A, i, j), c);
}
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ARB_MAT_INLINE void
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arb_mat_scalar_addmul_si(arb_mat_t B, const arb_mat_t A, slong c, slong prec)
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{
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slong i, j;
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for (i = 0; i < arb_mat_nrows(A); i++)
for (j = 0; j < arb_mat_ncols(A); j++)
arb_addmul_si(arb_mat_entry(B, i, j), arb_mat_entry(A, i, j), c, prec);
}
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ARB_MAT_INLINE void
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arb_mat_scalar_mul_si(arb_mat_t B, const arb_mat_t A, slong c, slong prec)
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{
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slong i, j;
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for (i = 0; i < arb_mat_nrows(A); i++)
for (j = 0; j < arb_mat_ncols(A); j++)
arb_mul_si(arb_mat_entry(B, i, j), arb_mat_entry(A, i, j), c, prec);
}
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ARB_MAT_INLINE void
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arb_mat_scalar_div_si(arb_mat_t B, const arb_mat_t A, slong c, slong prec)
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{
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slong i, j;
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for (i = 0; i < arb_mat_nrows(A); i++)
for (j = 0; j < arb_mat_ncols(A); j++)
arb_div_si(arb_mat_entry(B, i, j), arb_mat_entry(A, i, j), c, prec);
}
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ARB_MAT_INLINE void
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arb_mat_scalar_addmul_fmpz(arb_mat_t B, const arb_mat_t A, const fmpz_t c, slong prec)
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{
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slong i, j;
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for (i = 0; i < arb_mat_nrows(A); i++)
for (j = 0; j < arb_mat_ncols(A); j++)
arb_addmul_fmpz(arb_mat_entry(B, i, j), arb_mat_entry(A, i, j), c, prec);
}
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ARB_MAT_INLINE void
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arb_mat_scalar_mul_fmpz(arb_mat_t B, const arb_mat_t A, const fmpz_t c, slong prec)
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{
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slong i, j;
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for (i = 0; i < arb_mat_nrows(A); i++)
for (j = 0; j < arb_mat_ncols(A); j++)
arb_mul_fmpz(arb_mat_entry(B, i, j), arb_mat_entry(A, i, j), c, prec);
}
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ARB_MAT_INLINE void
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arb_mat_scalar_div_fmpz(arb_mat_t B, const arb_mat_t A, const fmpz_t c, slong prec)
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{
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slong i, j;
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for (i = 0; i < arb_mat_nrows(A); i++)
for (j = 0; j < arb_mat_ncols(A); j++)
arb_div_fmpz(arb_mat_entry(B, i, j), arb_mat_entry(A, i, j), c, prec);
}
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ARB_MAT_INLINE void
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arb_mat_scalar_addmul_arb(arb_mat_t B, const arb_mat_t A, const arb_t c, slong prec)
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{
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slong i, j;
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for (i = 0; i < arb_mat_nrows(A); i++)
for (j = 0; j < arb_mat_ncols(A); j++)
arb_addmul(arb_mat_entry(B, i, j), arb_mat_entry(A, i, j), c, prec);
}
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ARB_MAT_INLINE void
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arb_mat_scalar_mul_arb(arb_mat_t B, const arb_mat_t A, const arb_t c, slong prec)
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{
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slong i, j;
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for (i = 0; i < arb_mat_nrows(A); i++)
for (j = 0; j < arb_mat_ncols(A); j++)
arb_mul(arb_mat_entry(B, i, j), arb_mat_entry(A, i, j), c, prec);
}
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ARB_MAT_INLINE void
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arb_mat_scalar_div_arb(arb_mat_t B, const arb_mat_t A, const arb_t c, slong prec)
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{
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slong i, j;
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for (i = 0; i < arb_mat_nrows(A); i++)
for (j = 0; j < arb_mat_ncols(A); j++)
arb_div(arb_mat_entry(B, i, j), arb_mat_entry(A, i, j), c, prec);
}
/* Solving */
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ARB_MAT_INLINE void
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arb_mat_swap_rows(arb_mat_t mat, slong * perm, slong r, slong s)
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{
if (r != s)
{
arb_ptr u;
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slong t;
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if (perm != NULL)
{
t = perm[s];
perm[s] = perm[r];
perm[r] = t;
}
u = mat->rows[s];
mat->rows[s] = mat->rows[r];
mat->rows[r] = u;
}
}
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slong arb_mat_find_pivot_partial(const arb_mat_t mat,
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slong start_row, slong end_row, slong c);
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int arb_mat_lu(slong * P, arb_mat_t LU, const arb_mat_t A, slong prec);
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void arb_mat_solve_lu_precomp(arb_mat_t X, const slong * perm,
const arb_mat_t A, const arb_mat_t B, slong prec);
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int arb_mat_solve(arb_mat_t X, const arb_mat_t A, const arb_mat_t B, slong prec);
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int arb_mat_inv(arb_mat_t X, const arb_mat_t A, slong prec);
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void arb_mat_det(arb_t det, const arb_mat_t A, slong prec);
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/* Special functions */
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void arb_mat_exp(arb_mat_t B, const arb_mat_t A, slong prec);
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void _arb_mat_charpoly(arb_ptr cp, const arb_mat_t mat, slong prec);
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void arb_mat_charpoly(arb_poly_t cp, const arb_mat_t mat, slong prec);
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#ifdef __cplusplus
}
#endif
#endif