This manual relates to an old release of the Library.
The documentation for the current release is also available on this site.
NAG Library Manual, Mark 27.1
Interfaces:  FL   CL   CPP   AD 
NAG CL Interface Introduction
Example description
nag_roots_sys_deriv_check (c05zdc) Example Program Results

At point   9.20000e-01  1.30000e-01  5.40000e-01,
gradients appear correct