3 =head2 Stuff to figure out
5 * how should we interface to gsl_sf_result ?
7 http://www.gnu.org/software/gsl/manual/html_node/The-gsl_005fsf_005fresult-struct.html
10 use Math::GSL::Sf qw/gsl_sf_bessel/;
13 my $result = Math::GSL::Result->new;
15 my $expected = -0.17759677131433830434739701;
17 my $status = gsl_sf_bessel_J0_e ($x, $result);
19 print "status = $status\n";
20 printf "J0($x) = %.18f\n\t= +/- % .18f\n", $result->val, $result->err;
21 printf "exact = $expected\n;
25 * $status should get stringified to an actual message (via gsl_strerror)
29 * make the interface not be hardcoded to /usr/local/include/gsl