Unzip or unpack the file.
Note: If you are using Windows XP: The "built-in" utility is unable to unzip files larger than 4GB. Since Matlab is 4+ GB, we recommend using Winzip or Winrar to unzip the folder.
Open the file Matlab-R2011aLicense_instructions.pdf and follow these instructions to install Matlab.
Mac
Double-click the downloaded Matlab2011b.dmg file.
Open the file Matlab-R2011bLicense_instructions.pdf and follow these instructions to install Matlab.
Note: On August 31 each year, the Matlab license file expires. If you receive an license expiration message AND you use a stand-alone version of Matlab (it's installed on your computer), follow the steps to update your license.