LINDO Systems developed a collection of software packages that facilitate building and solving optimisation models.

Linear, non-linear and integer optimisation tools are used by companies interested in addressing questions related to profit maximisation, cost minimisation, production planning, transportation, finance, portfolio allocation, capital budgeting, blending, scheduling, inventory, resource allocation and other.

LINDO Systems offer the following products:

What’Best!: The Spreadsheet Solver

WhatsBest! lets you build linear, nonlinear, and integer models in Excel. Models are easy to build and understand using standard spreadsheet equations.

LINGO: Modelling Environment and Solver

LINGO is a comprehensive tool designed to help you build and solve linear, optimization models quickly, easily, and efficiently.

LINDO API: Optimisation Engine

LINDO API creates optimization applications. It allows you to plug the power of the LINDO solver right into customized applications that you have written.

Solver Suite

LINDO Systems bundle offering of all the above three products.

What’sBest! 16

What’sBest! 16 is currently a beta release (available for download here), see below for the new features in What’sBest! V15.

What’sBest! 16 includes a wide range of performance enhancements and new features.

Better Performance on Linear Models with Improved Simplex Solvers

Enhancements to the Simplex solvers boost speed on linear models. Models solve an average of 18% faster using primal simplex and 15% faster for dual simplex.

Significantly Faster on Large Quadratic Models

Improvements in handling large quadratic matrices, e.g. 1000 x 1000, provide substantial performance improvement solving Quadratic Programming models.

Improved Handling of Models with All Different and Discontinuous Functions

Models that utilize the ALLDIFF function and discontinuous functions such as MOD(x,k), INT(x), ROUND(x), can be solved more quickly.

Faster When Simultaneously Solving LPs Using Different Solvers

In situations in which it may be difficult to predict whether the Primal, Dual or Barrier Solver will provide the fastest solution to a linear model, an improved Multi-Core feature allows you to assign each solver to a separate core and run them concurrently. So, you are ensured the solution in the shortest time regardless of which solver is fastest.

Multi-Start NLP Solver Now Supports a Target Value

Users can specify a target value for the objective function. As soon as any multi-start thread achieves a specified target all threads stop.

New Engineering Design Functions

Support has been added for new arithmetic functions, WBSIGNPOWER, WBLMTD, WBRLMTD, that can be useful in various engineering design, e.g., nonlinear network and heat exchanger models.

Build Portfolio Models Easier

A new WBQUADPROD functions has been added to greatly simplify the expression of portfolio models.

LINGO 18

Currently a beta release, LINGO 18 is available for download here. See below the new features contained in LINGO 18:

Better Performance on Linear Models with Improved Simplex Solvers

Enhancements to the Simplex solvers boost speed on linear models. Models solve an average of 18% faster using primal simplex and 15% faster for dual simplex./p>

Significantly Faster on Large Quadratic Models

Improvements in handling large quadratic matrices, e.g. 1000 x 1000, provide substantial performance improvement solving financial portfolio and other quadratic models.

Improved Handling of Models with Discontinuous Functions

Models that use discontinuous functions such as MOD(x,k), INT(x), ROUND(x), can be solved more quickly.

Faster When Simultaneously Solving LPs Using Different Solvers

In situations in which it may be difficult to predict whether the Primal, Dual or Barrier Solver will provide the fastest solution to a linear model, an improved Multi-Core feature allows you to assign each solver to a separate core and run them concurrently. So, you are ensured the solution in the shortest time regardless of which solver is fastest.

Multi-Start NLP Solver Now Supports a Target Value

Users can specify a target value for the objective function. As soon as any multi-start thread achieves a specified target all threads stop.

Most Recent Modeling Language and Feature Enhancements:

  • New chart functions: Gantt charts, stacked vertical bar, stacked horizontal bar.
  • New function for executing commands from R statistics package from LINGO.
  • Ability to interrupt solver in a CALC section, but continue execution of the CALC.
  • New arithmetic functions: @SIGNPOWER, @LMTD and @RLMTD for heat exchanger and nonlinear network models.
  • New solver log option: Enable the solver log, set its output level.

LINDO API 12

Release 12 of LINDO API includes a wide range of performance enhancements and new features:

Better Performance on Linear Models with Improved Simplex Solvers

Enhancements to the Simplex solvers boost speed on linear models. Models solve an average of 18% faster using primal simplex and 15% faster for dual simplex.

Significantly Faster on Large Quadratic Models

Improvements in handling large quadratic matrices, e.g. 1000 x 1000, provide substantial performance improvement solving financial portfolio and other quadratic models.

Improved Handling of Models with Discontinuous Functions

Models that use discontinuous functions such as MOD(x,k), INT(x), ROUND(x), can be solved more quickly.

Faster When Simultaneously Solving LPs Using Different Solvers

In situations in which it may be difficult to predict whether the Primal, Dual or Barrier Solver will provide the fastest solution to a linear model, an improved Multi-Core feature allows you to assign each solver to a separate core and run them concurrently. So, you are ensured the solution in the shortest time regardless of which solver is fastest.

Multi-Start NLP Solver Now Supports a Target Value

Users can specify a target value for the objective function. As soon as any multi-start thread achieves a specified target all threads stop.

New Engineering Design Functions Added

Support has been added for new arithmetic functions, SIGNPOWER, LMTD, RLMTD, that can be useful in various engineering design, e.g., nonlinear network and heat exchanger models.

What’sBest!

  • Windows 32x80

LINGO

  • Windows 32x86
  • Windows 64x86
  • Linux 32x86
  • Linux 64x86

LINDO API

  • Windows 32x86
  • Windows 64x86
  • Mac-PowerPC
  • Mac 32x86
  • Linux 32x86
  • Linux 64x86
  • Solaris-SPARC 32
  • Solaris-SPARC 64

Solver Suite

  • Windows 32x80

Coming Soon. Please email us at info@timberlake.co.uk to order your license

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