mirror of
https://github.com/vale981/arb
synced 2025-03-07 02:11:38 -05:00
96 lines
3 KiB
C
96 lines
3 KiB
C
/*=============================================================================
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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
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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ARB is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with ARB; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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=============================================================================*/
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/******************************************************************************
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Copyright (C) 2015 Fredrik Johansson
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******************************************************************************/
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#include "acb_hypgeom.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("chebyshev_t....");
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fflush(stdout);
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flint_randinit(state);
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for (iter = 0; iter < 2000; iter++)
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{
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acb_t n, z, a, b, c, t, res1, res2;
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slong prec;
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acb_init(n);
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acb_init(z);
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acb_init(a);
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acb_init(b);
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acb_init(c);
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acb_init(t);
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acb_init(res1);
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acb_init(res2);
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prec = 2 + n_randint(state, 300);
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acb_randtest_param(n, state, 1 + n_randint(state, 400), 1 + n_randint(state, 10));
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acb_randtest_param(z, state, 1 + n_randint(state, 400), 1 + n_randint(state, 10));
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acb_randtest_param(res1, state, 1 + n_randint(state, 400), 1 + n_randint(state, 10));
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acb_randtest_param(res2, state, 1 + n_randint(state, 400), 1 + n_randint(state, 10));
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acb_hypgeom_chebyshev_t(res1, n, z, prec);
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acb_neg(a, n);
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acb_set(b, n);
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acb_one(c);
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acb_mul_2exp_si(c, c, -1);
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acb_sub_ui(t, z, 1, prec);
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acb_neg(t, t);
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acb_mul_2exp_si(t, t, -1);
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acb_hypgeom_2f1(res2, a, b, c, t, 0, 2 + n_randint(state, 300));
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if (!acb_overlaps(res1, res2))
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{
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flint_printf("FAIL: consistency\n\n");
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flint_printf("iter = %wd\n\n", iter);
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flint_printf("n = "); acb_printd(n, 30); flint_printf("\n\n");
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flint_printf("z = "); acb_printd(z, 30); flint_printf("\n\n");
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flint_printf("res1 = "); acb_printd(res1, 30); flint_printf("\n\n");
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flint_printf("res2 = "); acb_printd(res2, 30); flint_printf("\n\n");
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abort();
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}
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acb_clear(n);
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acb_clear(z);
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acb_clear(a);
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acb_clear(b);
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acb_clear(c);
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acb_clear(t);
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acb_clear(res1);
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acb_clear(res2);
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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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