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ULTIMO RILASCIO: Ottobre 2022

What’sBest! is an add-in to Excel that allows you to build large scale optimization models in a free form layout within a spreadsheet. What’sBest! combines the proven power of Linear, Nonlinear (convex and nonconvex/Global), Quadratic, Quadratically Constrained, Second Order Cone, Semi-Definite, Stochastic, and Integer optimization with Microsoft Excel — the most popular and flexible business modeling environment in use today. The recently released What’sBest! 18.0 includes a number of significant enhancements and new features. See how to formulate SP Models in What’sBest!.

 

 

What'sBest spreadsheet solver

 

 

CAPACITY AND OPTIONS DETAILS:

                                         Base Nonlinear                       Global
                                 Linear Models Nonlinear

Variables

Multistart

NL Variables

Global Solver

NL Variables

Capacity Constraints Variables Integers
Commercial/Super 1,000 2,000 200 200 200 10
Professional/Hyper 4,000 8,000 800 800 800 20
Industrial 16,000 32,000 3,200 3,200 3,200 50
Extended Unrestricted Unrestricted Unrestricted Unrestricted Unrestricted Unrestricted
WORLD’S MOST POWERFUL SOLVER FOR MICROSOFT EXCEL

What’sBest! will efficiently solve your biggest, toughest models. The linear, integer, nonlinear and global solvers in What’sBest! have been designed for large scale commercial use and field tested on real world models by companies around the world. For optimization modeling in Excel, What’sBest! offers unrivaled speed and capacity, … more

 

MODELING IS FAST AND EASY

Excel users will find What’sBest! to be an easy and powerful tool for solving optimization problems. Most users are able to begin modeling within minutes of installation, … more

BUILD MODELS FOR YOUR CLIENTS

What’sBest! is an ideal tool for creating optimization applications for use by others. What’sBest! allows you to provide the application in a form that is best suited to the user. For managers, you can build a simple, easy-to-understand spreadsheet. For clerical workers, you can create turn-key applications with custom interfaces, … more

EXTENSIVE DOCUMENTATION AND HELP

What’sBest! provides all of the tools you will need to get up and running quickly. You get the What’sBest! User Manual (in printed form and available via the online Help) that fully describes the commands and features of the program. Also included in the manual is discussion of the major classes of linear, integer and nonlinear optimization problems along with over two dozen real world based examples that you can modify and expand, … more

GENERAL

  • Improved support for SUMIF functions
  • Resolved a memory issue with large Stochastic programs

 

LINEAR AND INTEGER SOLVER IMPROVEMENTS:

  • Improved heuristics for general integer programs
  • Average performance improvement of 2-3% on our standard test set
“EXOTIC” EXCEL FUNCTIONS SUPPORT:

  • Assume Linear Option: allows use of any Excel function as long as the resulting optimization model is linear in the Adjustable cells. What’sBest! tests if this is true.
  • Binary Black Box Option: allows use of any Excel function as long as all the Adjustable cells are binary and the model includes no constraints. Linearity is not required.
  • Improved detection and reporting of unsupported formulae
NONLINEAR AND GLOBAL SOLVER IMPROVEMENTS:

  • Faster (order of magnitude) solution of linear fractional programs (ratio objectives)
  • Improved bound tightening process in preprocessing of nonlinear models
  • Auxiliary variables generated automatically to improve performance with complicated expressions
  • Support for additional useful but “problematic” functions: Power utility function (x^g-1)/g and the exponential ratio function (exp(g) – 1)/g, are important in some situations modeling consumer behavior. The solver can now robustly avoid the numerical problems that would otherwise occur when g approaches 0.
PERFORMANCE IMPROVEMENTS:

  • Significantly better handling of “infinite” Excel ranges, where user specifies an unnecessarily large range, e.g., an entire column.

LINEARIZATION IMPROVEMENTS:

  • More expressions can be automatically linearized, so you can now use a fast linear solver where otherwise a much slower (30x?) nonlinear solver might be required.
  • Advanced linearization of QP and Conic models
  • Improved linearization of certain IF expressions.

 

Per consultare i termini e le condizioni d’uso della casa produttrice del Software, LINDO Systems, cliccare qui

 

What’sBest End User License Agreement 
IMPORTANT – Carefully read all the terms and conditions of this agreement before installing this software package. Installing this package indicates your acceptance of these terms and conditions. If you do not accept these terms and conditions, please contact LINDO Systems Inc., 1415 N. Dayton St., Chicago, IL, 60642, 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 License
License

 

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.

 

Transfer
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.

 

Copyright
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

 

Remedy
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.

 

General
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.

 

Revised 13th October 2022

To install and run What’sBest!®, check that you have the following:

 

 

What’sBest!
Version

 

Operating System

 

Microsoft® Excel®

 

File Size

 

18.0 (.exe)

 

Windows

 

Excel 365, 2019, 2016, 2013, 2010, 2007 and 2003.

 

111MB

 

18.0 (.zip)

 

Windows

 

Excel 365, 2019, 2016, 2013, 2010, 2007 and 2003.

 

111MB

 

Make sure you have administrative access privileges to install files in your Default Drive, System, and Program Files folders.

 

An Internet connection is required to download the latest version of What’sBest!®. You can also contact LINDO Systems to obtain a copy. Additional information can be found in the Help tab of What’sBest!®.

 

Note: What’sBest! 32 or 64-bit format will depend on Excel, not Windows.

 

Please close Excel® during the installation.

WHAT’SBEST! MANUAL 

The What’sBest! manual can be downloaded in pdf format here

 

DOWNLOAD MODELS FOR WHAT’SBEST!

What’sBest! lets you build linear, nonlinear, and integer models in Excel. Models are easy to build and understanding standard spreadsheet equations. Excel users can often begin building models within minutes of installing the What’sBest! program, and the problem capacities of the larger What’sBest! versions allow large scale, real world problems to be solved.

 

RECOMMENDED BOOKS

  • Modeling the Supply Chain by Jeremy F. Shapiro
  • Modeling, Analysis and Optimization of Process and Energy Systems by F. Carl Knopf

 

VIDEO DESCRIPTION

Get a quick overview of the optimization modeling tools offered by LINDO Systems. The video goes over the arsenal of solvers and unique capabilities of LINGO, What’sBest, and LINDO API.


© Copyright 2024 Lindo Systems Inc

Applicazione (add-in) per Excel che permette di costruire modelli di ottimizzazione di grandi dimensioni in formato libero all’interno di un foglio elettronico.