106 lines
2.7 KiB
C
106 lines
2.7 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) 2011 Fredrik Johansson
|
||
|
|
|
||
|
|
******************************************************************************/
|
||
|
|
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <gmp.h>
|
||
|
|
#include "flint.h"
|
||
|
|
#include "fmpq.h"
|
||
|
|
#include "fmpq_mat.h"
|
||
|
|
|
||
|
|
int
|
||
|
|
main(void)
|
||
|
|
{
|
||
|
|
int i;
|
||
|
|
FLINT_TEST_INIT(state);
|
||
|
|
|
||
|
|
|
||
|
|
flint_printf("det....");
|
||
|
|
fflush(stdout);
|
||
|
|
|
||
|
|
for (i = 0; i < 100 * flint_test_multiplier(); i++)
|
||
|
|
{
|
||
|
|
fmpq_mat_t A, B, C;
|
||
|
|
fmpq_t a, b, ab, c;
|
||
|
|
|
||
|
|
slong n, bits;
|
||
|
|
|
||
|
|
n = n_randint(state, 10);
|
||
|
|
bits = 1 + n_randint(state, 100);
|
||
|
|
|
||
|
|
fmpq_mat_init(A, n, n);
|
||
|
|
fmpq_mat_init(B, n, n);
|
||
|
|
fmpq_mat_init(C, n, n);
|
||
|
|
|
||
|
|
fmpq_init(a);
|
||
|
|
fmpq_init(b);
|
||
|
|
fmpq_init(ab);
|
||
|
|
fmpq_init(c);
|
||
|
|
|
||
|
|
fmpq_mat_randtest(A, state, bits);
|
||
|
|
fmpq_mat_randtest(B, state, bits);
|
||
|
|
fmpq_mat_mul(C, A, B);
|
||
|
|
|
||
|
|
fmpq_mat_det(a, A);
|
||
|
|
fmpq_mat_det(b, B);
|
||
|
|
fmpq_mat_det(c, C);
|
||
|
|
|
||
|
|
fmpq_mul(ab, a, b);
|
||
|
|
|
||
|
|
if (!fmpq_equal(ab, c))
|
||
|
|
{
|
||
|
|
flint_printf("FAIL!\n");
|
||
|
|
flint_printf("A:\n");
|
||
|
|
fmpq_mat_print(A);
|
||
|
|
flint_printf("B:\n");
|
||
|
|
fmpq_mat_print(B);
|
||
|
|
flint_printf("C:\n");
|
||
|
|
fmpq_mat_print(C);
|
||
|
|
flint_printf("\ndet(A):\n");
|
||
|
|
fmpq_print(a);
|
||
|
|
flint_printf("\ndet(B):\n");
|
||
|
|
fmpq_print(b);
|
||
|
|
flint_printf("\ndet(C):\n");
|
||
|
|
fmpq_print(c);
|
||
|
|
abort();
|
||
|
|
}
|
||
|
|
|
||
|
|
fmpq_clear(a);
|
||
|
|
fmpq_clear(b);
|
||
|
|
fmpq_clear(ab);
|
||
|
|
fmpq_clear(c);
|
||
|
|
|
||
|
|
fmpq_mat_clear(A);
|
||
|
|
fmpq_mat_clear(B);
|
||
|
|
fmpq_mat_clear(C);
|
||
|
|
}
|
||
|
|
|
||
|
|
FLINT_TEST_CLEANUP(state);
|
||
|
|
|
||
|
|
flint_printf("PASS\n");
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|