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