Bessel Function J0

    x       actual     bessj0(x) 
 -5.00   -0.1775968   -0.1775968 
 -4.00   -0.3971498   -0.3971498 
 -3.00   -0.2600520   -0.2600520 
 -2.00    0.2238908    0.2238908 
 -1.00    0.7651976    0.7651977 
  0.00    1.0000000    1.0000000 
  1.00    0.7651977    0.7651977 
  2.00    0.2238908    0.2238908 
  3.00   -0.2600520   -0.2600520 
  4.00   -0.3971498   -0.3971498 
  5.00   -0.1775968   -0.1775968 
  6.00    0.1506453    0.1506453 
  7.00    0.3000793    0.3000793 
  8.00    0.1716508    0.1716508 
  9.00   -0.0903336   -0.0903336 
 10.00   -0.2459358   -0.2459358 
 11.00   -0.1711903   -0.1711903 
 12.00    0.0476893    0.0476893 
 13.00    0.2069261    0.2069261 
 14.00    0.1710735    0.1710735