Maximal Software MPL Modeling System 4.2.12.95

MPL (Mathematical Programming Language) is an advanced modeling system that allows the model developer to formulate complicated optimization models in a clear, concise, and efficient way. Models developed in MPL can then be solved with any of the multiple commercial optimizers available on the market today.

MPL offers a feature-rich model development environment that takes full advantage of the graphical user interface in Microsoft Windows, making MPL a valuable tool for developing optimization models. MPL can import data directly from databases or spreadsheets. Once the model has been solved, MPL also has the ability to export the solution back into the database. MPL models can be embedded into other Windows applications, such as databases or spreadsheets, which makes MPL ideal for creating end-user applications.

MPL Integrated Model Development Environment
The MPL Modeling System is a state-of-the-art optimization modeling software. MPL, through the use of advanced graphical user interface features, creates a flexible working environment that enables the model developer to be more efficient and productive. MPL provides in a single system all the essential components needed to formulate the model, gather and maintain the data, optimize the model, and then analyze the results.

The model developer uses the built-in model editor to formulate the MPL model statements and then selects the optimizer directly from the menus to solve the model. The solution results are automatically retrieved from the solver and displayed, providing the user with instant feedback. Each item defined in the model is also displayed in a tree window allowing the model developer to browse through them easily.

When using MPL to work on multiple models, the user can manage them effectively by utilizing project files. Project files store information about items such as, open model files and windows, the default working directory, and current option settings for both the modeling system and the solver.

The MPL Modeling System links to solvers dynamically through memory at run-time. This gives MPL the capability to integrate the solver completely into the modeling environment, resulting in the matrix being transferred between the modeling system and the solver directly through memory. As no files are involved, this seamless connection is both considerably faster and more robust than the traditional use of files in other modeling systems. In the event it is necessary to change any algorithmic options, MPL provides easy-to-use option dialog boxes for each solver. MPL fully supports context-sensitive help for option dialog boxes. A complete, printable on-line version of the manual, covering both the modeling environment and the language, is also available in the on-line help system for easy access.

MPL was designed to be portable and to be run on multiple platforms. MPL for Windows is the most popular platform but an OSF Motif version is also available for various UNIX flavors including: HP 9000, IBM RS-6000, Sun SPARC, and Silicon Graphics. MPL models are portable so a model created for one platform can always be read on any other supported platform.

MPL Modeling Language
The MPL Modeling Language offers a natural algebraic notation that enables the model developer to formulate complex optimization models in a concise, easy-to-read manner. Among modeling languages, MPL is unrivaled in its expressive power, readability, and user-friendliness. The MPL Modeling Language was designed to be very easy to use with a clear syntax making the process of formulating models in MPL efficient and productive. MPL is a very flexible language and can be used to formulate models in many different areas of optimization ranging from production planning, scheduling, finance, and distribution, to full-scale supply-chain optimization.

MPL is a very robust and stable software whose core modules have been through extensive use and testing over more than a decade. This assures that the MPL software is both reliable and dependable and can be used in mission-critical projects. Some of the more notable features of the MPL language include:

- Separation of the data from the model formulation
- Import data from different data sources
- Independence from specific solvers
- Use of macros for repetitive parts of the model
- Exclusion of parts of the model using conditional directives
- Special Ordered Sets and Semi-continuous variables
- WHERE/IF conditions to handle special cases
- Readable and helpful error messages

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