Meet ILOG CPLEX

ILOG CPLEX offers C and C++ libraries that solve linear programming (LP) problems and related problems. Specifically, it solves linearly constrained optimization problems where the objective to be optimized can be expressed as a linear function or a convex quadratic function. In the linear case, the variables in the model may be declared as continuous or further constrained to take only integer values.

CPLEX comes in three forms to meet a wide range of users' needs:

The CPLEX Interactive Optimizer is an executable program that can read a problem interactively or from files in certain standard formats, solve the problem, and deliver the solution interactively or into text files. The program consists of the file cplex.exe on Windows platforms or cplex on UNIX platforms.
Concert Technology is a set of libraries that offers an API that includes modeling facilities to allow the programmer to embed CPLEX optimizers in a C++ application. The library is provided in files ilocplex.lib and concert.lib on Windows platforms and in libilocplex.a and libconcert.a on UNIX platforms, and makes use of the Callable Library (described next).
The CPLEX Callable Library is a C library that allows the programmer to embed CPLEX optimizers in applications written in C, Visual Basic, Java, and Fortran. The library is provided in files cplex70.lib and cplex70.dll on Windows platforms and in libcplex.a on UNIX platforms.

In this manual, the phrase CPLEX Component Libraries is used when referring equally to either of these two libraries. While both libraries are callable, the term CPLEX Callable Library as used here refers specifically to the C library.

This preface introduces ILOG CPLEX. It includes the following sections:

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