What Is a Global Variable? A computer program is, essentially, a list of instructions for a computer to carry out when you run it. However, most programs are complex enough that they outgrow a ...

The variable in the RANGE statement, the ID variables, and the BY variables are available for the model program to examine, but their values should not be changed by the program.

The PATH variable is a file system environment variable that contains the location of commands and program files. In this article, you’ll learn how to set up your own PATH variable.

It is shown that the integer linear programming problem with a fixed number of variables is polynomially solvable. The proof depends on methods from geometry of numbers.