mirror of
https://github.com/vale981/arb
synced 2025-03-05 17:31:38 -05:00
97 lines
2.7 KiB
C
97 lines
2.7 KiB
C
/*
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Copyright (C) 2017 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 "arb_poly.h"
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#include "acb_poly.h"
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int main()
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{
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slong iter;
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flint_rand_t state;
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flint_printf("product_roots_complex....");
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fflush(stdout);
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flint_randinit(state);
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for (iter = 0; iter < 2000 * arb_test_multiplier(); iter++)
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{
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slong prec, len1, len2, i;
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arb_poly_t a;
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acb_poly_t b, c;
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arb_ptr r;
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acb_ptr r2, r3;
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prec = 2 + n_randint(state, 200);
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len1 = n_randint(state, 12);
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len2 = n_randint(state, 8);
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arb_poly_init(a);
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acb_poly_init(b);
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acb_poly_init(c);
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r = _arb_vec_init(len1);
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r2 = _acb_vec_init(len2);
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r3 = _acb_vec_init(len1 + 2 * len2);
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for (i = 0; i < len1; i++)
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arb_randtest(r + i, state, 1 + n_randint(state, 200), 3);
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for (i = 0; i < len2; i++)
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acb_randtest(r2 + i, state, 1 + n_randint(state, 200), 3);
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for (i = 0; i < len1; i++)
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acb_set_arb(r3 + i, r + i);
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for (i = 0; i < len2; i++)
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acb_set(r3 + len1 + i, r2 + i);
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for (i = 0; i < len2; i++)
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acb_conj(r3 + len1 + len2 + i, r2 + i);
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arb_poly_product_roots_complex(a, r, len1, r2, len2, prec);
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acb_poly_product_roots(b, r3, len1 + 2 * len2, prec);
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acb_poly_set_arb_poly(c, a);
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if (!acb_poly_overlaps(b, c))
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{
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flint_printf("FAIL\n\n");
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flint_printf("len1 = %wd, len2 = %wd\n\n", len1, len2);
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for (i = 0; i < len1; i++)
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{
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arb_printd(r + i, 15);
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flint_printf("\n");
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}
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for (i = 0; i < len2; i++)
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{
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acb_printd(r2 + i, 15);
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flint_printf("\n");
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}
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flint_printf("a = "); arb_poly_printd(a, 15); flint_printf("\n\n");
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flint_printf("b = "); acb_poly_printd(b, 15); flint_printf("\n\n");
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flint_printf("c = "); acb_poly_printd(c, 15); flint_printf("\n\n");
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flint_abort();
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}
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arb_poly_clear(a);
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acb_poly_clear(b);
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acb_poly_clear(c);
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_arb_vec_clear(r, len1);
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_acb_vec_clear(r2, len2);
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_acb_vec_clear(r3, len1 + 2 * len2);
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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 EXIT_SUCCESS;
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}
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