Learn more about Optimization Toolbox

Version 5.0 (R2010a) Optimization Toolbox Software

This table summarizes what's new in Version 5.0 (R2010a):

New Features and Changes	Version Compatibility Considerations	Fixed Bugs and Known Problems	Related Documentation at Web Site
Yes Details below	Yes Summary	Bug Reports Includes fixes	Printable Release Notes: PDF Current product documentation

• New fmincon Algorithm

• lsqnonneg No Longer Uses x0

New fmincon Algorithm

fmincon has a new algorithm called SQP for Sequential Quadratic Programming. The algorithm has the following features:

• Honors bounds at all iterations

• Attempts a different step if one leads to an objective or constraint function returning a NaN, Inf, or complex result

• Fast internal linear algebra for solving quadratic programs

Choose the algorithm at the command line by setting the Algorithm option to 'sqp' with optimset. For more information about the algorithm, see fmincon SQP Algorithm in the Optimization Toolbox™ documentation.

lsqnonneg No Longer Uses x0

The lsqnonneg solver no longer accepts a start point x0 as an optional input.

Compatibility Considerations

The Optimization Tool no longer has an input region for accepting a start point. If you import or run a problem that contains a start point x0, MATLAB issues a warning. Also, the Optimization Tool and lsqnonneg ignore x0, and instead use a start point of a vector of zeroes. If you export a problem structure from the Optimization Tool, there is no x0 field.

Optimization Toolbox Release Notes

Version 4.3 (R2009b) Optimization Toolbox Software

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