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How to Download and Use Operations Research System (TORA) Software for Free


How to Download and Use Operations Research System (TORA) Software for Free




Operations research is a branch of mathematics that deals with finding optimal solutions to complex problems involving decision making, planning, scheduling, resource allocation, and more. Operations research can be applied to various fields such as engineering, business, management, economics, and science.




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One of the tools that can help you learn and practice operations research is the Operations Research System (TORA) software. TORA is a software package that provides a user-friendly interface for solving various types of operations research problems, such as linear programming, integer programming, network analysis, game theory, simulation, and more. TORA also allows you to visualize and analyze the solutions using graphs, tables, and reports.


In this article, we will show you how to download and use TORA software for free on your computer. We will also provide some examples of how to use TORA to solve some common operations research problems.


Step 1: Download TORA Software




The first step is to download TORA software from the internet. TORA is a free software that can be downloaded from various websites that offer educational resources for operations research. However, some of these websites may require you to register or sign up before you can download the software. Here are some of the websites that you can use to download TORA software:


  • Scribd: This is a website that allows you to read and download various documents and books online. You can find TORA software under the category of "Documents" and "Education". You will need to create an account or log in with your Facebook or Google account before you can download the software.



  • Academia: This is a website that allows you to share and access academic papers and research online. You can find TORA software under the category of "Engineering" and "Operations Research". You will need to create an account or log in with your Facebook or Google account before you can download the software.



  • SlideShare: This is a website that allows you to view and download various presentations and slides online. You can find TORA software under the category of "Technology" and "Software". You will need to create an account or log in with your LinkedIn or Facebook account before you can download the software.



Once you have found the website that offers TORA software, follow these steps to download it:


  • Click on the link or button that says "Download" or "Get File".



  • Choose a destination folder on your computer where you want to save the file.



  • Wait for the download to complete.



The file name of TORA software may vary depending on the website and the version of the software. However, it usually has a ".zip" or ".rar" extension that indicates that it is a compressed file that needs to be extracted first before you can use it.


Step 2: Extract TORA Software




The next step is to extract TORA software from the compressed file that you have downloaded. To do this, you will need a software that can open and extract ZIP or RAR files, such as WinRAR or 7-Zip. These are free software that can be downloaded from their official websites:


  • WinRAR



  • 7-Zip



Once you have installed one of these software on your computer, follow these steps to extract TORA software:


  • Locate the compressed file of TORA software on your computer and right-click on it.



  • Select "Extract Here" or "Extract Files" from the menu that appears.



  • Choose a destination folder on your computer where you want to extract the files.



Wait for the extraction to complete


Step 3: Install TORA Software




After extracting TORA software, you will find a folder that contains several files and subfolders. One of these files is the setup file that you need to run to install TORA software on your computer. The setup file may have different names depending on the version of the software, but it usually has a ".exe" extension that indicates that it is an executable file. For example, the setup file for TORA version 2.0 is called "tora.exe".


To install TORA software, follow these steps:


  • Locate the setup file of TORA software on your computer and double-click on it to run it.



  • Follow the instructions on the screen to install TORA software. You may need to accept some terms and conditions, choose a destination folder, or select some options.



  • Wait for the installation to complete and then restart your computer if required.



After installing TORA software, you will find a shortcut icon on your desktop or in your start menu that you can use to launch the software.


Step 4: Use TORA Software




Now that you have installed TORA software on your computer, you can use it to solve various types of operations research problems. TORA software has a user-friendly interface that consists of four main parts:


  • The menu bar: This is located at the top of the screen and contains various options and commands that you can use to create, open, save, print, or edit your problem files.



  • The toolbar: This is located below the menu bar and contains various buttons and icons that provide quick access to some of the most common commands and functions.



  • The problem window: This is located on the left side of the screen and shows the problem statement and the input data that you need to enter for your problem.



  • The solution window: This is located on the right side of the screen and shows the solution and the output data that are generated by TORA software for your problem.



To use TORA software, follow these general steps:


  • Create a new problem file or open an existing one from the menu bar or the toolbar.



  • Select the type of problem that you want to solve from the menu bar or the toolbar. For example, if you want to solve a linear programming problem, select "Linear Programming" from the "Problem Type" menu.



  • Enter the input data for your problem in the problem window. You can use the mouse or the keyboard to enter or edit the data. You can also use the toolbar buttons to insert or delete rows or columns, copy or paste data, or clear all data.



  • Click on the "Solve" button on the toolbar or select "Solve" from the "Solution" menu to solve your problem. TORA software will generate the solution and display it in the solution window. You can also use the toolbar buttons to view different aspects of the solution, such as graphs, tables, reports, or sensitivity analysis.



Analyze and interpret the solution and output data in the solution window. You can use




  • Save your problem file or close it from the menu bar or the toolbar.



Examples of Using TORA Software to Solve Operations Research Problems




To give you a better idea of how to use TORA software to solve operations research problems, here are some examples of common problems and how to solve them using TORA software:


Example 1: Linear Programming Problem




A linear programming problem is a problem that involves finding the optimal values of some decision variables that satisfy a set of linear constraints and maximize or minimize a linear objective function. For example, consider the following linear programming problem:


Maximize Z = 3x + 4y


Subject to:


x + y 4


x - y 2


x 0


y 0


To solve this problem using TORA software, follow these steps:


  • Create a new problem file or open an existing one from the menu bar or the toolbar.



  • Select "Linear Programming" from the "Problem Type" menu or the toolbar.



Enter the input data for your problem in the problem window. You need to enter the number of decision variables, the number of constraints, the coefficients of the objective function, the coefficients of the constraints, and the right-hand sides of the constraints. For this problem, you need to enter:


  • Number of decision variables: 2



  • Number of constraints: 4



  • Coefficients of objective function: 3 and 4



  • Coefficients of constraints: 1, 1, 1, -1, 1, 0, and 0, 1



  • Right-hand sides of constraints: 4, 2, 0, and 0



Click on the "Solve" button on the toolbar or select "Solve" from the "Solution" menu to solve your problem. TORA software will generate the solution and display it in the solution window. You will see something like this:


The solution window shows that the optimal values of x and y are 2 and 2 respectively, and that the optimal value of Z is 14. It also shows a graph of the feasible region and the optimal point, a table of the simplex method iterations, a report of the optimal solution and its sensitivity analysis, and a summary of




  • Analyze and interpret the solution and output data in the solution window. You can use the toolbar buttons to zoom in or out, print, or export the solution and output data.



  • Save your problem file or close it from the menu bar or the toolbar.



Example 2: Integer Programming Problem




An integer programming problem is a problem that involves finding the optimal values of some decision variables that satisfy a set of linear constraints and maximize or minimize a linear objective function, with the additional requirement that some or all of the decision variables must be integers. For example, consider the following integer programming problem:


Maximize Z = 5x + 6y


Subject to:


x + y 5


x - y 3


x 0


y 0


x and y are integers


To solve this problem using TORA software, follow these steps:


  • Create a new problem file or open an existing one from the menu bar or the toolbar.



  • Select "Integer Programming" from the "Problem Type" menu or the toolbar.



Enter the input data for your problem in the problem window. You need to enter the number of decision variables, the number of constraints, the coefficients of the objective function, the coefficients of the constraints, and the right-hand sides of the constraints. For this problem, you need to enter:


  • Number of decision variables: 2



  • Number of constraints: 4



  • Coefficients of objective function: 5 and 6



  • Coefficients of constraints: 1, 1, 1, -1, 1, 0, and 0, 1



  • Right-hand sides of constraints: 5, 3, 0, and 0