55 lines
1.7 KiB
C
55 lines
1.7 KiB
C
/*=============================================================================
|
|
|
|
This file is part of FLINT.
|
|
|
|
FLINT 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.
|
|
|
|
FLINT 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 FLINT; if not, write to the Free Software
|
|
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
|
|
=============================================================================*/
|
|
/******************************************************************************
|
|
|
|
Copyright (C) 2010,2011 Fredrik Johansson
|
|
|
|
******************************************************************************/
|
|
|
|
#include "fmpz_mat.h"
|
|
|
|
void
|
|
fmpz_mat_det(fmpz_t det, const fmpz_mat_t A)
|
|
{
|
|
slong dim = A->r;
|
|
|
|
if (dim != A->c)
|
|
{
|
|
flint_printf("Exception (fmpz_mat_det). Non-square matrix.\n");
|
|
abort();
|
|
}
|
|
|
|
if (dim < 5)
|
|
fmpz_mat_det_cofactor(det, A);
|
|
else if (dim < 25)
|
|
fmpz_mat_det_bareiss(det, A);
|
|
else if (dim < 60)
|
|
fmpz_mat_det_modular(det, A, 1);
|
|
else
|
|
{
|
|
slong bits = fmpz_mat_max_bits(A);
|
|
|
|
if (dim < FLINT_ABS(bits))
|
|
fmpz_mat_det_modular(det, A, 1);
|
|
else
|
|
fmpz_mat_det_modular_accelerated(det, A, 1);
|
|
}
|
|
}
|