arb/arb_hypgeom/test/t-bessel_k_integration.c
2021-12-10 18:12:01 +01:00

82 lines
2.5 KiB
C

/*
Copyright (C) 2021 Fredrik Johansson
This file is part of Arb.
Arb is free software: you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License (LGPL) as published
by the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version. See <http://www.gnu.org/licenses/>.
*/
#include "arb_hypgeom.h"
int main()
{
slong iter;
flint_rand_t state;
flint_printf("bessel_k_integration....");
fflush(stdout);
flint_randinit(state);
for (iter = 0; iter < 100 * arb_test_multiplier(); iter++)
{
arb_t a, z, r1, r2;
slong prec1, prec2;
int scaled;
prec1 = 2 + n_randint(state, 80);
prec2 = 2 + n_randint(state, 150);
arb_init(a);
arb_init(z);
arb_init(r1);
arb_init(r2);
scaled = n_randint(state, 2);
arb_randtest_precise(a, state, 1 + n_randint(state, 200), 1 + n_randint(state, 8));
arb_randtest_precise(z, state, 1 + n_randint(state, 200), 1 + n_randint(state, 8));
arb_randtest(r1, state, 1 + n_randint(state, 200), 1 + n_randint(state, 5));
arb_randtest(r2, state, 1 + n_randint(state, 200), 1 + n_randint(state, 5));
arb_add_ui(a, a, n_randint(state, 100), prec1 + 100);
arb_add_ui(z, z, n_randint(state, 100), prec1 + 100);
arb_hypgeom_bessel_k_integration(r1, a, z, scaled, prec1);
if (arb_is_finite(r1))
{
if (n_randint(state, 2))
arb_hypgeom_bessel_k_integration(r2, a, z, scaled, prec2);
else
{
if (scaled)
arb_hypgeom_bessel_k_scaled(r2, a, z, prec2);
else
arb_hypgeom_bessel_k(r2, a, z, prec2);
}
if (!arb_overlaps(r1, r2))
{
flint_printf("FAIL: overlap\n\n");
flint_printf("a = "); arb_printd(a, 30); flint_printf("\n\n");
flint_printf("z = "); arb_printd(z, 30); flint_printf("\n\n");
flint_printf("r1 = "); arb_printd(r1, 30); flint_printf("\n\n");
flint_printf("r2 = "); arb_printd(r2, 30); flint_printf("\n\n");
flint_abort();
}
}
arb_clear(a);
arb_clear(z);
arb_clear(r1);
arb_clear(r2);
}
flint_randclear(state);
flint_cleanup();
flint_printf("PASS\n");
return EXIT_SUCCESS;
}