The discussion centers around a new PF Insights post detailing five common MATLAB error messages and their solutions. A key focus is on the error message indicating that "FUN must be a function, a valid string expression, or an inline function object." This error typically occurs when a function handle is not specified correctly in functions that require it, such as FMINSEARCH. The conversation encourages members to contribute additional error messages they frequently encounter, emphasizing the importance of understanding function handles, which have replaced inline function objects in MATLAB. A link to a relevant MathWorks thread is provided for further clarification on resolving this specific error.
