Set up a WolframID
To download Mathematica or use Mathematica online, go to the Wolfram User Portal (http://user.wolfram.com) and create a WolframID using your swarthmore.edu email. Check your email to validate your account.
Installation Instructions
To install Mathematica, you will need an activation key from Wolfram Research, the makers of Mathematica. To obtain a key:
Visit the appropriate Wolfram Mathematica User Portal:
Log in with your Wolfram account (instructions above)
Fill out the Activation Key Request Form. Select the single machine option and your choice of version.
After you submit the form, you will receive an activation key (a copy will also be emailed to you).
After submitting the product registration form, download Mathematica on the next page (at the bottom).
Run the installer. When you start Mathematica you will be prompted to enter the activation key you received via email.
Mathematica Online
To access Mathematica online using a browser:
Request your log-in: https://user.wolfram.com/portal/requestAK/40d9ac8579c801485edd6151daf3f2c43cd348d9. Log in with your Wolfram ID (see instructions above)
Check your email to validate
Go to http://mathematica.wolframcloud.com to start using Mathematica online