mirror of
https://github.com/vale981/arb
synced 2025-03-06 09:51:39 -05:00
109 lines
3.1 KiB
C
109 lines
3.1 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) 2013 Fredrik Johansson
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******************************************************************************/
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#include "acb_calc.h"
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/* sin(x) */
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int
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sin_x(acb_ptr out, const acb_t inp, void * params, slong order, slong prec)
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{
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int xlen = FLINT_MIN(2, order);
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acb_set(out, inp);
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if (xlen > 1)
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acb_one(out + 1);
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_acb_poly_sin_series(out, out, xlen, order, prec);
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return 0;
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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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printf("integrate_taylor....");
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fflush(stdout);
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flint_randinit(state);
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for (iter = 0; iter < 150; iter++)
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{
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acb_t ans, res, a, b;
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arf_t inr, outr;
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double t;
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slong goal, prec;
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acb_init(ans);
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acb_init(res);
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acb_init(a);
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acb_init(b);
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arf_init(inr);
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arf_init(outr);
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goal = 2 + n_randint(state, 300);
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prec = 2 + n_randint(state, 300);
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acb_randtest(a, state, 1 + n_randint(state, 200), 2);
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acb_randtest(b, state, 1 + n_randint(state, 200), 2);
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acb_cos(ans, a, prec);
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acb_cos(res, b, prec);
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acb_sub(ans, ans, res, prec);
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t = (1 + n_randint(state, 20)) / 10.0;
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arf_set_d(inr, t);
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arf_set_d(outr, t + (1 + n_randint(state, 20)) / 5.0);
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acb_calc_integrate_taylor(res, sin_x, NULL,
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a, b, inr, outr, goal, prec);
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if (!acb_overlaps(res, ans))
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{
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printf("FAIL! (iter = %wd)\n", iter);
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printf("prec = %wd, goal = %wd\n", prec, goal);
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printf("inr = "); arf_printd(inr, 15); printf("\n");
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printf("outr = "); arf_printd(outr, 15); printf("\n");
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printf("a = "); acb_printd(a, 15); printf("\n");
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printf("b = "); acb_printd(b, 15); printf("\n");
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printf("res = "); acb_printd(res, 15); printf("\n\n");
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printf("ans = "); acb_printd(ans, 15); printf("\n\n");
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abort();
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}
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acb_clear(ans);
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acb_clear(res);
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acb_clear(a);
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acb_clear(b);
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arf_clear(inr);
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arf_clear(outr);
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}
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flint_randclear(state);
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flint_cleanup();
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printf("PASS\n");
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return EXIT_SUCCESS;
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}
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