How to Loop variables

Look the example of this:

https://www.mathworks.com/help/optim/ug/optimproblem.html

The objective of the example is x(1) + x(2). It is easy to type manually.

But I have 1155 variable [meaning x(1)+x(2)+...+x(1155)] to optimise and it will take ages to type manually. Thus I must use loop.

My main part is to solve optivar('x',1,1155,'LowerBound',0,'UpperBound',0) - 1155 variables.

How to use the loop in here?

[dpb]

Use vector functions... [x(1)+x(2)+...+x(1155)] is just

sumx=sum(x);

[Walter Roberson]

x = optivar('x',1,1155,'LowerBound',0,'UpperBound',1234);  %upper bound same as lower bound is unlikely
sumx = sum(x);