LINGO 15.0 x64 官网正式版
LINGO 15.0 on Windows64, x64 非商业个人版LINGO 15.0 Enhancementshttp://www.lindo.com/templates/js_jamba/images/printButton.pnghttp://www.lindo.com/templates/js_jamba/images/emailButton.png
Release 15.0 of LINGO includes support for new platforms as well as a wide range of performance enhancements and new features.
1. Native Macintosh Support:
[*]LINGO's user interface has been entirely rewritten to offer native support for the Macintosh. Below is an image of the Mac version running a small nonlinear program on a MacBook Pro:
http://www.lindo.com/images/lindo/LINGO150.png2. GUI Interface for Linux Versions of Lingo:
[*]Prior to LINGO 15, Linux versions had a command-line interface, as opposed to the easier to use GUI interface found on Windows versions. Linux versions of LINGO now have a full GUI interface similar to the Windows version's interface.
3. Conic Solver Enhancements:
[*]The Conic Solver option has been enhanced through the addition of Semi-Definite Program (SDP)/Positive Definite (POSD) capabilities using the @POSD function. As an example, if one is estimating a covariance matrix for a portfolio, it's possible to use @POSD to force the matrix to be positive semi-definite, which is a property required of any covariance matrix.
4. Linear Solver Improvements:
[*]Simplex LP algorithm implementation has been improved for speed and robustness.
[*]The performance improvements compared to previous version is 90% for primal simplex and 45% for the dual simplex.
5. Integer Solver Improvements:
[*]Knapsack related cuts improvements. Significantly faster solve times on models with certain knapsack-like constraints.
[*]Improved default node selection rules improves performance on most integer models.
[*]New branching variable rule options: maximum coefficients and neighborhood branching, which can reduce number of branches on certain integer models.
[*]Perspective reformulation capability gives improved performance on quadratic portfolio models with semi-continuous variables, e.g. min-buy quantities.
6. Nonlinear Solver Improvements:
[*]Improved default settings for nonlinear models gives a 5% average speed improvement.
[*]Faster processing of long nonlinear expressions in nonlinear models.
7. Presolver Improvements:
[*]New preprocessing for the linear and integer solvers to significantly reduce coefficient density of certain dense matrices.
8. Other Improvements:
[*]Quadratic repair feature for near-convex Quadratic Programs (QP). Gives improved performance on not quite convex QP’s.
[*]Additional multithreaded code added to model generator to improve generation times on large models.
For general information on LINGO's capabilities, visit our LINGO product page. To try a limited capacity version of LINGO 15, see ourdownload page. For information on evaluating a full capacity version contact us.
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