A subroutine, which can also be commonly called a routine, is a section of a computer program that performs a particular task. Subroutines are sets of computer instructions that exist and run within a program. Computer programs can be written as a...

Conditional control transfer was proposed by John von Neumann in the mid 1940s. His concept held that a program could be written in a series of subroutines--small blocks of code that could be read in any desired order:mdash;instead of having one large...

In computer science, a subroutine (function, method, procedure, or subprogram) is a portion of code within a larger program, which performs a specific task and can be relatively independent of the remaining code. The syntax of many programming languages...

This essay introduces the IBM Optimization Subroutine Library (OSL) and seven OSL-related papers that appear in this issue. Developed as a result of a partnership between several IBM research and development groups, OSL provides a suite of tools for manipulating the models and solving...

The Optimization Subroutine Library (OSL) provides powerful tools for solving mathematical programming problems, and permits the integration of these tools into larger applications. In order to access the computational power, an application must translate data between forms used in the rest of the application...