LINGO 22 Algebraic Modeling Language – New Features:
1) Solvers:
- Simplex solvers increase the average performance on large instances by 25-30%.
- MIP (Mixed Integer Program) solvers:
- From our standard benchmark suite, the number of models solved to optimality within 2hrs increased by 20% compared to the previous version.
- Improved support for external solvers such as COPT, Coin/CLP, Highs.
- Global solver has tighter linearizations and relaxations.
- Improved Random Number Generator. The `@RAND` and `@QRAND` functions now use a composite of linear congruential generators with a long period for enhanced pseudo-random number generation in the range (0, 1).
- Time to Best in Solution Report. The solution report now includes the Time to Best, the seconds of elapsed time to finding the best solution. This time is frequently << time to prove optimality of the best solution.
2) Excel Interface:
- Improvements to the Excel Add-in, so you can better run LINGO models from within an Excel spreadsheet.
- Import models directly from Excel into the LINGO editor.
- Push edits from LINGO back to Excel.
- Faster solution report generation on big models.
3) Editor Improvements:
- Double Hints - Quickly access context-sensitive information by double-clicking on sets, attributes, or variables anywhere in your model. Tooltips will display definitions, parent sets, or origin details depending on the element selected.
- Adaptive auto-complete capable of suggesting both LINGO methods frequently used words. For more helpful hints enable verbose auto-complete from the right-click menu.
- Improved editor UI with larger buttons, line numbers and an option to split model screens.
4) Visual Studio Code Add-ins:
- LINGO-LSP(Language Server Protocol in VS (Visual Studio) Code Add-in.
- Edit and run LINGO models within Visual Studio Code.
- Includes syntax highlighting, auto complete, hover documentation, and a run button with solutions summary.
- LINGO Copilot VS (Visual Studio) Code Add-in.
- Built on GitHub Copilot, this extension generates LINGO code from natural language or LaTeX descriptions.
- Can answer questions about LINGO documentation and generate contextual model comments.
Many of the new features in this release are due to suggestions from users. If you have more suggestions or questions, contact:
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LINDO Systems Inc.
(312) 988-7422
