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Hardware and Software Recommendations

SIGMA runs on any computer running Microsoft Windows or a Windows emulator.

Helpful Software

To build general simulation engines for spreadsheets with SIGMA, Microsoft Excel is useful. For editing SIGMA-generated simulator source code, a text editor such Notepad++ is recommended.


Download and install SIGMA from to our downloads page.


SIGMA installs using a Windows installer. SIGMA will install both the SIGMA application, as well as a set of sample SIGMA models. These models are stored in your Documents directory, under the sub-directory 'SIGMA Models'. If you want to re-install the application from scratch (replacing these models), you will need to delete this SIGMA Models directory before you install the application.

Steps to Install

1. Double click on the Setup file to begin installation of SIGMA.

2. An End User License Agreement will appear. Click 'Agree' to accept the terms and conditions of the EULA (or Cancel to abort the setup). SIGMA will then install. Upon completion, SIGMA will load for the first time, to complete licensing.

3. Activate SIGMA, by entering your email address and a license key in the dialog box (see below). Clicking on the link 'Click to Purchase Serial Number' will take you to the downloads page where you can purchase a license. If you have downloaded an academic student license, your license key will be included in the email we sent you when you registered. Activation with a valid license key is required in order to use SIGMA.


NOTE: If you have previously installed SIGMA and your license has expired, you will see a dialog box like the one below. Click OK to continue and enter your current serial number.


4. SIGMA is located in the Start menu All Programs, under the 'Sigma' folder.


Use the Control Panel to uninstall SIGMA. Optionally, you can also remove the SIGMA models you created. These models are stored in your Documents directory, under the sub-directory 'SIGMA Models'.

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