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   -0.1750104
  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