mirror of
https://github.com/vale981/arb
synced 2025-03-05 17:31:38 -05:00
111 lines
3.8 KiB
C
111 lines
3.8 KiB
C
/*
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Copyright (C) 2021 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_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("gamma_upper_integration....");
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fflush(stdout);
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flint_randinit(state);
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for (iter = 0; iter < 100 * arb_test_multiplier(); iter++)
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{
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arb_t a, z, r1, r2;
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slong prec1, prec2;
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int regularized;
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prec1 = 2 + n_randint(state, 80);
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prec2 = 2 + n_randint(state, 150);
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arb_init(a);
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arb_init(z);
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arb_init(r1);
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arb_init(r2);
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regularized = n_randint(state, 3);
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arb_randtest_precise(a, state, 1 + n_randint(state, 200), 1 + n_randint(state, 8));
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arb_randtest_precise(z, state, 1 + n_randint(state, 200), 1 + n_randint(state, 8));
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arb_randtest(r1, state, 1 + n_randint(state, 200), 1 + n_randint(state, 5));
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arb_randtest(r2, state, 1 + n_randint(state, 200), 1 + n_randint(state, 5));
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arb_add_ui(a, a, n_randint(state, 100), prec1 + 100);
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arb_add_ui(z, z, n_randint(state, 100), prec1 + 100);
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arb_hypgeom_gamma_upper_integration(r1, a, z, regularized, prec1);
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if (arb_is_finite(r1))
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{
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if (n_randint(state, 2))
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arb_hypgeom_gamma_upper_integration(r2, a, z, regularized, prec2);
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else
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arb_hypgeom_gamma_upper(r2, a, z, regularized, prec2);
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if (!arb_overlaps(r1, r2))
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{
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flint_printf("FAIL: overlap\n\n");
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flint_printf("a = "); arb_printd(a, 30); flint_printf("\n\n");
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flint_printf("z = "); arb_printd(z, 30); flint_printf("\n\n");
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flint_printf("r1 = "); arb_printd(r1, 30); flint_printf("\n\n");
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flint_printf("r2 = "); arb_printd(r2, 30); flint_printf("\n\n");
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flint_abort();
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}
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}
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if (iter == 0)
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{
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prec1 = 333;
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arb_set_str(a, "5.25", prec1);
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arb_set_str(z, "1.125", prec1);
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arb_hypgeom_gamma_upper_integration(r1, a, z, 0, prec1);
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arb_set_str(r2, "35.072486673952527119466762267780775062420879980812938235868074922070540736636294202721367124421387 +/- 5.01e-97", prec1);
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if (!arb_overlaps(r1, r2) || arb_rel_accuracy_bits(r1) < arb_rel_accuracy_bits(r2) - 10)
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{
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flint_printf("FAIL: overlap (1)\n\n");
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flint_printf("r1 = "); arb_printd(r1, 100); flint_printf("\n\n");
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flint_printf("r2 = "); arb_printd(r2, 100); flint_printf("\n\n");
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flint_abort();
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}
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arb_set_str(a, "-23515.25", prec1);
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arb_set_str(z, "5118.125", prec1);
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arb_hypgeom_gamma_upper_integration(r1, a, z, 0, prec1);
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arb_set_str(r2, "1.2585189324946269645868452847608400602717904014578585865177198314407671242201776909963228597279e-89448 +/- 8.86e-89543", prec1);
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if (!arb_overlaps(r1, r2) || arb_rel_accuracy_bits(r1) < arb_rel_accuracy_bits(r2) - 10)
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{
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flint_printf("FAIL: overlap (1)\n\n");
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flint_printf("r1 = "); arb_printd(r1, 100); flint_printf("\n\n");
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flint_printf("r2 = "); arb_printd(r2, 100); flint_printf("\n\n");
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flint_abort();
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}
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}
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arb_clear(a);
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arb_clear(z);
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arb_clear(r1);
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arb_clear(r2);
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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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