From 79c1064cdd08d5b305845b9eb41d790b50d4d468 Mon Sep 17 00:00:00 2001 From: zimmerma Date: Thu, 22 Mar 2007 17:12:00 +0000 Subject: added Bessel functions of first kind: j0, j1, jn git-svn-id: svn://scm.gforge.inria.fr/svn/mpfr/trunk@4385 280ebfd0-de03-0410-8827-d642c229c3f4 --- tests/tj1.c | 84 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 84 insertions(+) create mode 100644 tests/tj1.c (limited to 'tests/tj1.c') diff --git a/tests/tj1.c b/tests/tj1.c new file mode 100644 index 000000000..5151aa5af --- /dev/null +++ b/tests/tj1.c @@ -0,0 +1,84 @@ +/* tj1 -- test file for the Bessel function of first kind (order 1) + +Copyright 2007 Free Software Foundation, Inc. +Contributed by the Arenaire and Cacao projects, INRIA. + +This file is part of the MPFR Library. + +The MPFR Library is free software; you can redistribute it and/or modify +it under the terms of the GNU Lesser General Public License as published by +the Free Software Foundation; either version 2.1 of the License, or (at your +option) any later version. + +The MPFR Library is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY +or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public +License for more details. + +You should have received a copy of the GNU Lesser General Public License +along with the MPFR Library; see the file COPYING.LIB. If not, write to +the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, +MA 02110-1301, USA. */ + +#include +#include + +#include "mpfr-test.h" + +#define TEST_FUNCTION mpfr_zeta +#include "tgeneric.c" + +int +main (int argc, char *argv[]) +{ + mpfr_t x, y; + + tests_start_mpfr (); + + mpfr_init (x); + mpfr_init (y); + + /* special values */ + mpfr_set_nan (x); + mpfr_j1 (y, x, GMP_RNDN); + MPFR_ASSERTN(mpfr_nan_p (y)); + + mpfr_set_inf (x, 1); /* +Inf */ + mpfr_j1 (y, x, GMP_RNDN); + MPFR_ASSERTN(mpfr_cmp_ui (y, 0) == 0 && MPFR_IS_POS (y)); + + mpfr_set_inf (x, -1); /* -Inf */ + mpfr_j1 (y, x, GMP_RNDN); + MPFR_ASSERTN(mpfr_cmp_ui (y, 0) == 0 && MPFR_IS_POS (y)); + + mpfr_set_ui (x, 0, GMP_RNDN); /* +0 */ + mpfr_j1 (y, x, GMP_RNDN); + MPFR_ASSERTN(mpfr_cmp_ui (y, 0) == 0 && MPFR_IS_POS (y)); /* j1(+0)=+0 */ + + mpfr_set_ui (x, 0, GMP_RNDN); + mpfr_neg (x, x, GMP_RNDN); /* -0 */ + mpfr_j1 (y, x, GMP_RNDN); + MPFR_ASSERTN(mpfr_cmp_ui (y, 0) == 0 && MPFR_IS_NEG (y)); /* j1(-0)=-0 */ + + mpfr_set_prec (x, 53); + mpfr_set_prec (y, 53); + + mpfr_set_ui (x, 1, GMP_RNDN); + mpfr_j1 (y, x, GMP_RNDN); + mpfr_set_str_binary (x, "0.0111000010100111001001111011101001011100001100011011"); + if (mpfr_cmp (x, y)) + { + printf ("Error in mpfr_j1 for x=1, rnd=GMP_RNDN\n"); + printf ("Expected "); mpfr_dump (x); + printf ("Got "); mpfr_dump (y); + exit (1); + } + mpfr_clear (x); + mpfr_clear (y); + + test_generic (2, 100, 1); + + tests_end_mpfr (); + + return 0; +} -- cgit v1.2.1