MATLAB: Problem with optimset not being recognized, R2012a

optimset

I just loaded R2012a this morning and my old m-files are broken. I am having trouble with optimset, and just decided to put optimset in the m-file, as the help says "optimset" alone should return the options. Instead I get this error:
Undefined function or variable 'optimset'
which optimset
yields:
'optimset' not found
even though which lsqcurvefit yields: C:\Program Files\MATLAB\R2012a\toolbox\shared\optimlib\lsqcurvefit.m
Here is my output from ver: MATLAB Version: 7.14.0.739 (R2012a) MATLAB License Number: ####### [SCd Censor] Operating System: Microsoft Windows 7 Version 6.1 (Build 7601: Service Pack 1) Java Version: Java 1.6.0_17-b04 with Sun Microsystems Inc. Java HotSpot™ 64-Bit Server VM mixed mode ——————————————————————————————————-
MATLAB                                                Version 7.14       (R2012a)
Simulink                                              Version 7.9        (R2012a)
Bioinformatics Toolbox                                Version 4.1        (R2012a)
Control System Toolbox                                Version 9.3        (R2012a)
Curve Fitting Toolbox                                 Version 3.2.1      (R2012a)
DSP System Toolbox                                    Version 8.2        (R2012a)
Data Acquisition Toolbox                              Version 3.1        (R2012a)
Image Acquisition Toolbox                             Version 4.3        (R2012a)
Image Processing Toolbox                              Version 8.0        (R2012a)
Instrument Control Toolbox                            Version 3.1        (R2012a)
MATLAB Compiler                                       Version 4.17       (R2012a)
MATLAB Report Generator                               Version 3.12       (R2012a)
Neural Network Toolbox                                Version 7.0.3      (R2012a)
Optimization Toolbox                                  Version 6.2        (R2012a)
Parallel Computing Toolbox                            Version 6.0        (R2012a)
Partial Differential Equation Toolbox                 Version 1.0.20     (R2012a)
Signal Processing Toolbox                             Version 6.17       (R2012a)
SimBiology                                            Version 4.1        (R2012a)
SimMechanics                                          Version 4.0        (R2012a)
Simscape                                              Version 3.7        (R2012a)
Spreadsheet Link EX                                   Version 3.1.5      (R2012a)
Stateflow                                             Version 7.9        (R2012a)
Statistics Toolbox                                    Version 8.0        (R2012a)
Symbolic Math Toolbox                                 Version 5.8        (R2012a)
Wavelet Toolbox                                       Version 4.9
What happened to my install?
Thanks

Best Answer

I did a complete download and reinstall. After the reinstall, I located optimset in the path Arthur suggested above, as opposed to the one I found earlier in \funfun. But still no optimset. When I started matlab in told me that my Toolbox Path Cache was out of date. I reapplied the setting under general, and it started working.
Thanks Arthur for the help.
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