mirror of
https://github.com/vale981/arb
synced 2025-03-06 01:41:39 -05:00
94 lines
2.8 KiB
C
94 lines
2.8 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 "acb.h"
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static const char *testdata[5] = {
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"-0.2487544770337842625472529935761139760973697136685351169998556396906930329999105060928584336658420889 +/- 1e-90",
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"-0.9189385332046727417803297364056176398613974736377834128171515404827656959272603976947432986359541976 +/- 1e-90",
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"-0.5772156649015328606065120900824024310421593359399235988057672348848677267776646709369470632917467495 +/- 1e-90",
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"1.644934066848226436472415166646025189218949901206798437735558229370007470403200873833628900619758705 +/- 1e-90",
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"-2.404113806319188570799476323022899981529972584680997763584543110683676411572626180372911747218670516 +/- 1e-90",
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};
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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("polygamma....");
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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_t a, s, b, c;
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slong prec1, prec2;
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prec1 = 2 + n_randint(state, 500);
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prec2 = prec1 + 30;
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acb_init(a);
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acb_init(s);
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acb_init(b);
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acb_init(c);
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if (iter < 200)
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{
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slong i = n_randint(state, 5);
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acb_set_si(s, -2 + i);
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acb_one(a);
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acb_randtest(c, state, 1 + n_randint(state, 500), 3);
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acb_add(s, s, c, prec2);
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acb_sub(s, s, c, prec2);
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acb_polygamma(b, s, a, prec1);
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acb_zero(c);
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arb_set_str(acb_realref(c), testdata[i], prec2);
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}
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else
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{
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acb_randtest(a, state, 1 + n_randint(state, 500), 3);
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acb_randtest(s, state, 1 + n_randint(state, 500), 3);
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acb_polygamma(b, s, a, prec1);
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acb_randtest(c, state, 1 + n_randint(state, 500), 3);
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acb_add(s, s, c, prec2);
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acb_sub(s, s, c, prec2);
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acb_polygamma(c, s, a, prec2);
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}
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if (!acb_overlaps(b, c))
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{
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flint_printf("FAIL: overlap\n\n");
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flint_printf("a = "); acb_print(a); flint_printf("\n\n");
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flint_printf("s = "); acb_print(s); flint_printf("\n\n");
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flint_printf("b = "); acb_print(b); flint_printf("\n\n");
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flint_printf("c = "); acb_print(c); flint_printf("\n\n");
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abort();
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}
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acb_clear(a);
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acb_clear(s);
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acb_clear(b);
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acb_clear(c);
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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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