NAG Library Manual, Mark 27.2
Interfaces:  FL   CL   CPP   AD
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E04XAF Example Program Results

Find gradients and Hessian diagonals given function only
( i.e. MODE = 0 ).
Function value is    1.550E+02
Estimated gradient vector is
2.400E+01   -2.680E+02    2.160E+02   -4.000E+01
Estimated Hessian matrix diagonal is
1.220E+02    3.080E+02    4.420E+02    1.300E+02

Find Hessian matrix given function and gradients
( i.e. MODE = 1 ).
Function value is    1.550E+02
Gradient vector is
2.400E+01   -2.680E+02    2.160E+02   -4.000E+01
Estimated Hessian matrix (machine dependent) is
1.220E+02    2.000E+01    0.000E+00   -1.200E+02
2.000E+01    3.080E+02   -2.160E+02    0.000E+00
0.000E+00   -2.160E+02    4.420E+02   -1.000E+01
-1.200E+02    0.000E+00   -1.000E+01    1.300E+02

Find gradients and Hessian matrix given function only
( i.e. MODE = 2 ).
Function value is    1.550E+02
Estimated gradient vector is
2.400E+01   -2.680E+02    2.160E+02   -4.000E+01
Estimated Hessian matrix (machine dependent) is
1.220E+02    2.000E+01   -4.404E-03   -1.200E+02
2.000E+01    3.080E+02   -2.160E+02    6.605E-03
-4.404E-03   -2.160E+02    4.420E+02   -1.000E+01
-1.200E+02    6.605E-03   -1.000E+01    1.300E+02
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