Roots of bessj0: x f(x) root 1 2.404827 -0.000001 root 2 5.520077 0.000000 root 3 8.653729 0.000000 root 4 11.791533 0.000000 root 5 14.930930 -0.000003 root 6 18.071054 -0.000002 root 7 21.211639 0.000000 root 8 24.352465 -0.000001 root 9 27.493486 -0.000001 root 10 30.634581 -0.000004 root 11 33.775833 -0.000002 root 12 36.917088 -0.000001 root 13 40.058434 -0.000001 root 14 43.199783 -0.000001 root 15 46.341213 -0.000003 root 16 49.482594 -0.000002