Mathematica has both cloud and local options available for Davidson College faculty and students.
More information on the College's access to the desktop installation can be found here: Mathematica
You will first need to request a key at the link below. If you have previously created an account to download Mathematica using your Davidson email address, log into it here. Otherwise, choose the option to create a Wolfram account. Make sure to use your Davidson email address when signing up.
You can request your access key here.
After receiving your key via email, you can access Mathematica Online at https://www.wolframcloud.com/
Wolfram provides some helpful guides to get started on Mathematica Online as well, which can be found here.