Bessel Function Y1
    X      Actual    BESSY1(X)
  0.10  -6.4589510  -6.4589510
  1.00  -0.7812128  -0.7812128
  2.00  -0.1070324  -0.1070324
  3.00   0.3246744   0.3246744
  4.00   0.3979257   0.3979257
  5.00   0.1478631   0.1478631
  6.00  -0.1750103  -0.1750103
  7.00  -0.3026672  -0.3026672
  8.00  -0.1580605  -0.1580605
  9.00   0.1043146   0.1043146
 10.00   0.2490154   0.2490154
 11.00   0.1637055   0.1637055
 12.00  -0.0570992  -0.0570992
 13.00  -0.2100814  -0.2100814
 14.00  -0.1666448  -0.1666448