User`s guide

23 Optimization Toolbox 2.1.1 Release Notes
23-2
New Features
This section introduces the new features and enhancements added in the
Optimization Toolbox 2.1.1 since the Optimization Toolbox 2.1 (Release 12.0).
For information about Optimization Toolbox features that are incorporated
from recent releases, see the Release Notes for Release 12.
Support for Large Problems that Are Not
Well-Scaled
In Version 2.1.1, large-scale finite differencing is improved numerically to
handle cases when an optimization problem is not well-scaled. These changes
potentially improve the speed and accuracy of results when using the
large-scale versions of
lsqnonlin, lsqcurvefit, fsolve, fmincon and fminunc,
particularly if the objective function is not well-scaled.