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With the LINDO API, you can easily create your own optimization applications. It allows you to plug the power of the LINDO solvers right into customized applications and mathematical programs that you have written. The recently released LINDO API 10 includes a number of significant enhancements and new features.

Fast, Easy Application Development

The LINDO API makes it easy for you to seamlessly integrate optimization into your own application. The developer interface has been designed for maximum ease-of-use and flexibility. It comes with clear, comprehensive documentation and examples to help you get running quickly.

Powerful Solvers

LINDO API provides you with an arsenal of powerful solvers for Stochastic, Linear, Nonlinear (convex & nonconvex/Global), Quadratic, Quadratically Constrained, Second Order Cone and Integer optimization. All solvers incorporate numerous enhancements for maximum speed and robustness.

Stochastic Programming Features

LINDO Systems has begun shipping a new release of LINDO API that includes new features to allow users to incorporate uncertainty into their optimization models.

Comprehensive Set of Routines

Whether your application is big or small, simple or complex, the LINDO API provides the flexibility and functionality that you’ll need. It includes dozens of routines to formulate, solve, query, and modify your problems.

Convenient Interface to MATLAB

The Windows 32 bit and 64 bit versions of LINDO API can be run as a MATLAB callable function. Using MATLAB ‘s modeling and programming environment, you can build and solve models and create custom algorithms based upon the LINDO API’s routines and solvers.

Extensive Documentation and Help

LINDO API provides all of the tools you will need to get up and running quickly. You get the LINDO API User Manual (in printed form or online in pdf format) that includes detailed function definitions for all routines. Also included in the manual is a discussion to assist you in writing your own applications.applications.

Analyze Infeasible and Unbounded Models

LINDO API includes tools that allow you to track down what has caused a model to be infeasible or unbounded. The tools isolate a portion of the original model as the source of the problem. This allows you to focus your attention on a relatively small subsection of the model to look for formulation or data entry errors. On infeasible linear, nonlinear, quadratic and integer models, the tools can find an irreducibly inconsistent set of constraints (IIS), and on unbounded models, the tools can find an irreducibly unbounded set of columns (IUS).

Create Web and Intranet Applications

The LINDO API is thread safe to allow you to create web and network applications that handle multiple user sessions concurrently. Web and network applications require special licensing. Contact LINDO Systems for more information.

Model Size Flexibility

Why pay for more capacity than you need? The LINDO API is available in a variety of different capacities. The capacities range from a few hundred variables to versions with unlimited capacity, so you can select the product that best suits your needs for a particular problem.

Faster Solutions on Linear Models with Improved Simplex Solver

Enhancements to the Simplex solvers boost performance on large linear models. Large models solve an average of 35% faster using primal simplex and 20% faster for dual simplex.
Additional LP solver enhancements include a new extension to support multiple objective criteria.

Improved Integer Solver with new features

A new optimization mode has been introduced to ensure reproducibility of runs.
Investigate alternative optima more quickly. Enhancements to the K-Best algorithm allow finding K best solutions in little more time than finding one solution.
Find faster solutions to models with knapsack constraints and block structures using new heuristic algorithms.
New preprocessing level tightens variable bounds for better performance on classes of nonlinear models.

Enhanced Stochastic Solver

Large linear multistage SP instances solve 60% faster with improved cut management for Nested Benders Decomposition Method.
Better handling of multistage SP models which do not have full-recourse.
Extensions to the parser allow the use of arbitrarily complex functions of stochastic parameters.

Improved Global Solver

Performance of Global solver has been dramatically improved on classes of quadratic problems. In particular, non-convex quadratic problems rejected by other solvers, or otherwise solvable only slowly to a local optimum by traditional NLP solvers. Can solve some previously intractable problems to global optimality, especially financial portfolio models with minimum buy quantities, and/or limit on number of instruments at nonzero level.
Incorporates a new bound tightening process to the linearization procedure and improves solvability of linearized model. Dramatically faster, more robust performance on many models with functions like MAX( ), MIN( ), ABS( ), x*z where z = 0 or 1, etc.

Additional Enhancements

Extended collection of user callable matrix operations for working with covariance matrices such as in financial portfolio design. Routines include general eigenvalue decomposition, cholesky factorization for generating correlated random variables, Semi-Definiteness (SDP) constraints, plus linear regression, e.g. for doing demand forecasting for production planning models.

IMPORTANT – Carefully read all the terms and conditions of this agreement before installing this software package. Installing this package indicates your acceptance of theses terms and conditions. If you do not accept these terms and conditions, contact LINDO Systems Inc., PO Box 148231, Chicago, IL, 60614, for instructions on return of this package for a refund.


LINDO Systems License Agreement

Subject to the following terms and conditions, LINDO Systems Inc. (LINDO) hereby grants to you a non-exclusive license to use the LINDO Systems Inc. software program (the “SOFTWARE”) contained on the enclosed media and related documentation.


Software Licence

Except as set forth below, LINDO grants to you the right to use the SOFTWARE on any single computer. You may also install a copy for your exclusive use on either a home computer or portable computer. You may store or install a copy of the SOFTWARE on a storage device, such as a network server, used only to install or run the SOFTWARE over an internal network; however, you must acquire and dedicate a license for each individual who will use the SOFTWARE. If the license is installed on a network server or other system that physically allows shared access to the SOFTWARE, you agree to provide technical or procedural methods to prevent use of the SOFTWARE by individuals not specifically licensed to use the SOFTWARE pursuant to this Agreement.



The SOFTWARE may be transferred to a single recipient on a permanent basis provided you retain no copies of the SOFTWARE nor documentation (including backup or archival copies) and the recipient agrees to the terms and conditions of this license agreement. At the time of the transfer of the SOFTWARE, you must transfer all media and documentation including any updated media and documentation.



The SOFTWARE and its related documentation are copyrighted and protected by US copyright laws and international treaty provisions. You may not use, copy, modify, or transfer the SOFTWARE or related documentation except as expressly provided in the license agreement or with written permission of LINDO Systems Inc.


Restrictions Against Distribution

You may not distribute, lease, sublease, rent, or sublicense the SOFTWARE or related documentation without written permission of LINDO Systems, Inc.


Limited Warranty

LINDO Systems Inc. warrants that the enclosed media and the copy of the related documentation to be free of defects in materials and workmanship for a period of one year from receipt of your payment. Due to the inherent complexity of computer programs and mathematical models, the SOFTWARE and your mathematical models may not be completely free of errors. You are advised to verify your answers before basing decisions on them. NEITHER LINDO SYSTEMS INC. NOR ANYONE ASSOCIATED WITH THE CREATION, PRODUCTION, OR DISTRIBUTION OF THE SOFTWARE MAKES ANY OTHER EXPRESSED WARRANTIES REGARDING THE MEDIA OR DOCUMENTATION AND MAKES NO WARRANTIES AT ALL, EITHER EXPRESSED OR IMPLIED, REGARDING THE SOFTWARE, INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR OTHERWISE.



LINDO’s entire liability and your exclusive remedy for breach of this Limited Warrant shall be, at LINDO’s Option, either return of the price paid or replacement of defective media or documentation. In no event shall LINDO Systems Inc. be liable for any damages including but not limited to loss of profit, data, or direct, indirect, special or consequential damages, even if LINDO has been specifically advised of the possibility of such damages.



This agreement gives you specific rights, and you may also have other rights that vary from state to state. This License Agreement is governed by, and shall be construed in accordance with, the laws of the State of Illinois.

Lindo API 10 is available for:

Windows 32 bit and 64 bit

Linux 32 bit and 64 bit

Mac 64 bit

Lindi API Manual

The Lindo API can be downloaded in pdf format here.

© Copyright 2017 Lindo Systems Inc.

Libreria dinamica che permette di utilizzare le potenzialità di Lindo all’interno di altre applicazioni.