mirror of
https://github.com/vale981/arb
synced 2025-03-06 01:41:39 -05:00
6bf072eb59
This will allow us to not loose the julia session on error. See also https://github.com/wbhart/flint2/pull/243
73 lines
2 KiB
C
73 lines
2 KiB
C
/*
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Copyright (C) 2012 Fredrik Johansson
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This file is part of Arb.
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Arb is free software: you can redistribute it and/or modify it under
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the terms of the GNU Lesser General Public License (LGPL) as published
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by the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version. See <http://www.gnu.org/licenses/>.
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*/
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#include "acb_mat.h"
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int
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main(void)
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{
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slong iter;
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flint_rand_t state;
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flint_printf("charpoly....");
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fflush(stdout);
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flint_randinit(state);
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for (iter = 0; iter < 1000 * arb_test_multiplier(); iter++)
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{
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acb_mat_t A, B, C, D;
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acb_poly_t f, g;
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slong m, n;
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m = n_randint(state, 8);
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n = m;
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acb_mat_init(A, m, n);
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acb_mat_init(B, m, n);
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acb_mat_init(C, m, m);
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acb_mat_init(D, n, n);
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acb_poly_init(f);
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acb_poly_init(g);
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acb_mat_randtest(A, state, 1 + n_randint(state, 1000), 10);
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acb_mat_randtest(B, state, 1 + n_randint(state, 1000), 10);
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acb_mat_mul(C, A, B, 2 + n_randint(state, 1000));
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acb_mat_mul(D, B, A, 2 + n_randint(state, 1000));
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acb_mat_charpoly(f, C, 2 + n_randint(state, 1000));
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acb_mat_charpoly(g, D, 2 + n_randint(state, 1000));
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if (!acb_poly_overlaps(f, g))
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{
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flint_printf("FAIL: charpoly(AB) != charpoly(BA).\n");
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flint_printf("Matrix A:\n"), acb_mat_printd(A, 15), flint_printf("\n");
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flint_printf("Matrix B:\n"), acb_mat_printd(B, 15), flint_printf("\n");
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flint_printf("cp(AB) = "), acb_poly_printd(f, 15), flint_printf("\n");
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flint_printf("cp(BA) = "), acb_poly_printd(g, 15), flint_printf("\n");
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flint_abort();
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}
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acb_mat_clear(A);
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acb_mat_clear(B);
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acb_mat_clear(C);
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acb_mat_clear(D);
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acb_poly_clear(f);
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acb_poly_clear(g);
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}
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flint_randclear(state);
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flint_cleanup();
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flint_printf("PASS\n");
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return 0;
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}
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