NAG Library Manual, Mark 28.3
Interfaces:  FL   CL   CPP   AD 

NAG CL Interface Introduction
Example description

nag_specfun_bessel_zeros (s17alc) Example Program Results

   a   n   mode
  0.0  5     1

Leading n positive zeros of J
  x =    2.4048e+00
  x =    5.5201e+00
  x =    8.6537e+00
  x =    1.1792e+01
  x =    1.4931e+01