This manual relates to an old release of the Library.
The documentation for the current release is also available on this site.
Example description
 E04HDF Example Program Results

 The test point is
    1.4600  -0.8200   0.5700   1.2100

 2nd derivatives are consistent with 1st derivatives

 At the test point, FUNCT gives the function value  6.2273E+01
 and the 1st derivatives
   -1.285E+01  -1.649E+02   5.384E+01   5.775E+00

 H gives the lower triangle of the Hessian matrix
    9.500E+00
    2.000E+01   2.461E+02
    0.000E+00  -9.220E+01   1.944E+02
   -7.500E+00   0.000E+00  -1.000E+01   1.750E+01