https://in.mathworks.com/matlabcentral/answers/744467-matrix-optimization-using-optimization-toolbox-objective-must-be-a-scalar-optimizationexpression?s_tid=prof_contriblnk
Matrix Optimization using optimization toolbox - "Objective must be a scalar OptimizationExpression...
Matrix Optimization using optimization toolbox... Learn more about optimization, objective function, matrices, matlab, fitting
must bematrixoptimizationusingtoolbox
https://se.mathworks.com/help/optim/ug/optim.problemdef.optimizationexpression.html
OptimizationExpression - Arithmetic or functional expression in terms of optimization variables -...
An OptimizationExpression is an arithmetic or functional expression in terms of optimization variables.
terms ofarithmeticfunctionalexpressionoptimization