MATLAB OPTIMIZATION TOOLBOX - RELEASE NOTES Bedienungsanleitung PDF herunterladen (Seite 55)

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• 'iter-detailed'

• 'notify-detailed'

These settings have the same effect as the corresponding settings without '-detailed',

but give detailed exit messages instead of the default exit messages. For solvers without

the new exit messages, the '-detailed' options give the same behavior as without '-

detailed'.

Messages in Output Structure

For solvers with enhanced exit messages, the message field of the output structure

contains both the default (simpler) and the detailed exit messages, separated by a line

of text stating Stopping criteria details:. The message field does not contain

hyperlinks; it contains only text.

Compatibility Considerations

For solvers with enhanced exit messages, the content of output.message contains

many more characters than before. User code that relies on this field may need to be

modified in order to display the larger exit message satisfactorily.

Change in linprog Simplex Algorithm

The simplex algorithm of linprog now detects when there is no progress in the solution

process. It attempts to continue by performing bound perturbation.

Compatibility Considerations

The simplex algorithm of linprog might arrive at different solutions than before, and

can solve more problems than before.

Change in fminunc Exit Flag

One exit flag in the fminunc medium-scale solver was changed from –2 to 5. This flag

appears when the solver predicts a change in function value at the next step in its

iterations will be less than the TolFun tolerance. This condition can occur at a relative

minimum, which should be reported by a positive flag.

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MATLAB OPTIMIZATION TOOLBOX - RELEASE NOTES Bedienungsanleitung Seite 55