Multi-objective optimization more then 2 variable

for i=1,2,...,11;j=1,2,3; and k=1,2,3. how to write this formula/model to function and can be applicated in optimization problem? I tried but haven't found an answer.

[Walter Roberson]

gamultiobj() can take a vector of an arbitrary number of variables (though typically the more variables you have, the slower the optimization.)