The variable i is declared using the let keyword. This ensures it is a local variable. Initially, its value is undefined, before the for loop assigns and modifies its value.

Missing Values Missing values for variables in programming statements are treated in the same way that missing values are treated in the DATA step; that is, missing values used in expressions ...

A new procedure for mixed integer programming is presented. It is applicable where the integer variables must be either zero or one, and where the integer variables are divided into sets such that the ...

The branch-and-bound method with the revised dual simplex for bounded variables is very effective in solving relatively large-size integer linear programming problems. This paper, based on the general ...