What Is Optimization Toolbox?

Optimizing Anonymous Functions Instead of M-FilesThe second output argument, searchdir, contains the search directions forfmincon at each iteration. The search direction is a vector pointing from thepointcomputedatthecurrentiterationtothepointcomputedatthenextiteration.searchdirsearchdir =-0.3679 0.2500-4.2029 2.21990.7708 -1.1947-3.8108 -2.0268-1.3625 -0.2432-0.9552 0.0346-0.5241 -0.0061-0.0003 0.0003Optimizing Anonymous Functions Instead of M-FilesThe routines in Optimization Toolbox also perform optimization on anonymousfunctions, as well as functions defined by M-files.To represent a mathematical function at the command line, create ananonymous function from a string expression. For example, you can createan anonymous version of the humps function (use the command type humpsto see the M-file function humps.m):fh = @(x)1./((x-0.3).^2 + 0.01) + 1./((x-0.9).^2 + 0.04)-6;The constructor for an anonymous function returns a function handle, shownas fh above, that you can use in calling the function. Use the usual MATLABfunction calling syntax to call a function by means of its function handle.Evaluate the anonymous function at 2.0:fh(2.0)ans =-4.8552You can also pass handle fh to an optimization routinetominimizeit:2-95