mirror of
https://github.com/vale981/arb
synced 2025-03-06 09:51:39 -05:00
101 lines
2.9 KiB
C
101 lines
2.9 KiB
C
/*
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Copyright (C) 2012, 2013 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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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("riemann_siegel_z_series....");
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fflush(stdout);
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flint_randinit(state);
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for (iter = 0; iter < 300 * arb_test_multiplier(); iter++)
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{
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slong m, n1, n2, rbits1, rbits2, rbits3;
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arb_poly_t a, b, c, d;
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rbits1 = 2 + n_randint(state, 150);
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rbits2 = 2 + n_randint(state, 150);
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rbits3 = 2 + n_randint(state, 150);
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m = 1 + n_randint(state, 15);
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n1 = 1 + n_randint(state, 15);
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n2 = 1 + n_randint(state, 15);
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arb_poly_init(a);
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arb_poly_init(b);
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arb_poly_init(c);
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arb_poly_init(d);
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arb_poly_randtest(a, state, m, rbits1, 10);
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if (a->length != 0)
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arb_randtest_precise(a->coeffs, state, rbits1, 1);
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arb_poly_randtest(b, state, m, rbits1, 10);
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arb_poly_randtest(c, state, m, rbits1, 10);
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arb_poly_riemann_siegel_z_series(b, a, n1, rbits2);
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arb_poly_riemann_siegel_z_series(c, a, n2, rbits3);
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arb_poly_set(d, b);
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arb_poly_truncate(d, FLINT_MIN(n1, n2));
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arb_poly_truncate(c, FLINT_MIN(n1, n2));
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if (!arb_poly_overlaps(c, d))
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{
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flint_printf("FAIL\n\n");
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flint_printf("n1 = %wd, n2 = %wd, bits2 = %wd, bits3 = %wd\n", n1, n2, rbits2, rbits3);
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flint_printf("a = "); arb_poly_printd(a, 15); flint_printf("\n\n");
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flint_printf("b = "); arb_poly_printd(b, 15); flint_printf("\n\n");
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flint_printf("c = "); arb_poly_printd(c, 15); flint_printf("\n\n");
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abort();
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}
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/* check Z(a) = Z(-a) */
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arb_poly_neg(d, a);
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arb_poly_riemann_siegel_z_series(c, d, n1, rbits2);
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if (!arb_poly_overlaps(b, c))
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{
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flint_printf("FAIL (symmetry, n1 = %wd)\n\n", n1);
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flint_printf("a = "); arb_poly_printd(a, 15); flint_printf("\n\n");
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flint_printf("b = "); arb_poly_printd(b, 15); flint_printf("\n\n");
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flint_printf("c = "); arb_poly_printd(c, 15); flint_printf("\n\n");
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flint_printf("d = "); arb_poly_printd(d, 15); flint_printf("\n\n");
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abort();
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}
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arb_poly_riemann_siegel_z_series(a, a, n1, rbits2);
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if (!arb_poly_overlaps(a, b))
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{
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flint_printf("FAIL (aliasing)\n\n");
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abort();
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}
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arb_poly_clear(a);
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arb_poly_clear(b);
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arb_poly_clear(c);
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arb_poly_clear(d);
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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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