NAG Library Manual, Mark 28.3
Interfaces:  FL   CL   CPP   AD 
NAG CL Interface Introduction
Example description

nag_specfun_arctanh (s11aac) Example Program Results
     x           y
  -5.000e-01  -5.493e-01
   0.000e+00   0.000e+00
   5.000e-01   5.493e-01
  -9.999e-01  -4.952e+00