NAG Library Manual, Mark 29
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D04AAF Example Program Results

Four separate runs to calculate the first four odd order derivatives of
f(x) = 0.5*exp(2.0*X-1.0) at x = 0.5.
The exact results are 1, 4, 16 and 64

Input parameters common to all four runs
xval =  0.5    nder = -7    ifail = 0

with step length   0.5000  the results are
Order        Derivative       Questionable?
1           0.1392E+04             Yes
3          -0.3139E+04             Yes
5           0.8762E+04             Yes
7          -0.2475E+05             Yes

with step length   0.0500  the results are
Order        Derivative       Questionable?
1           0.1000E+01             No
3           0.4000E+01             No
5           0.1600E+02             No
7           0.6400E+02             No

with step length   0.0050  the results are
Order        Derivative       Questionable?
1           0.1000E+01             No
3           0.4000E+01             No
5           0.1600E+02             No
7           0.6404E+02             No

with step length   0.0005  the results are
Order        Derivative       Questionable?
1           0.1000E+01             No
3           0.4000E+01             No
5           0.1599E+02             No
7           0.3825E+05             Yes
```