LegalPermissions

Permissions, Legalities, Authorizations, and Related Matters

Remember: if you don't find what you need, or if you'd like to ask a question, then please email [email protected] at any time. We'd love to hear from you! Please include a link (the URL address in your browser) to any relevant project or document, as part of your email.

List of Questions:

• I would like to use CoCalc with my 300+ Calculus Students. Can you handle that kind of load?
• May I use CoCalc for commercial purposes?
• May I use CoCalc for SageMath development?
• How Do I Cite CoCalc?
• What can I store in a project?
• What's my sudo/root password?
• How can I create public projects on CoCalc?
• If I "share" a file, does it become public to everyone and/or searchable? Or is the only way to get to it via a link and a SageMath account?
• What if my question isn't answered above?

Question: I would like to use CoCalc with my 300+ Calculus Students. Can you handle that kind of load?

Go for it! We have substantial excess capacity. For example, UCLA used CoCalc in their 400+ Calculus class, and dozens of other 100+ courses are using CoCalc. See https://github.com/sagemathinc/smc/wiki/Teaching

Question: May I use CoCalc for commercial purposes?

(Updated May 13, 2015).

YES. You may use all CoCalc projects for commercial purposes (e.g., "for personal or company gain"). CoCalc runs entirely on Google Compute Engine Virtual Machines that are paid for by a private company (SageMath, Inc.). Also, all data is stored and offsite backups are done on hardware owned by SageMath, Inc.

Please see our privacy policy.

Question: May I use CoCalc for Sage development?

YES. You may use CoCalc projects for Sage development. Instructions on how to go about doing this can be at the page SageMath-Development-on-CoCalc.md

Question: How do I cite CoCalc?

When writing a research paper, a conference talk, or a book, it is very helpful and appropriate to cite CoCalc. In the BibTeX language, one could write.

@manual{sage,
  Key          = {CoCalc},
  Author       = {SageMath, Inc.},
  Title        = {CoCalc Online Computational Mathematics},
  note         = {{\tt https://cloud.sagemath.com/}},
  Year         = {2016},
}

Of course, you should change 2016 to whatever year (or years) during which you used CoCalc.

In ordinary text, one would write

SageMath, Inc., CoCalc Online Computational Mathematics, 2016. https://cloud.sagemath.com/.

Question: What can I store in a project?

The available webspace is a courtesy to be able to run your computational projects online. It's not for downloading arbitrary stuff from the internet. For more details about our policies, please read https://cloud.sagemath.com/policies/terms.html

Question: What's my sudo/root password?

1. You cannot have sudo/root access, because you are on a shared machine and such a global privilege only for administrators. To install a python package locally, do pip install --user ...
2. To get internet access, please subscribe to one of the memberships. This page tells you more about this. https://cloud.sagemath.com/policies/pricing.html
3. If you tell us which package you need, we might be able to install it system wide for you.

Question: How can I create public projects on CoCalc?

You can make individual files and folders public. Pull up information for a file (click the info icon), and click on "Share Publicly". Once you do this, simply share the URL that is displayed in the top of your browser when you look at the file (or directory). Anybody else who views that link will see the file, and can create an account and copy it to their own project.

You can also publish Jupyter notebooks via a Publish button -- see this video.

Question: If I "share" a file, does it become public to everyone and/or searchable? Or is the only way to get to it via a link and a SageMath account?

When you click "Share Publicly" in the info dialog for a file or directory, then yes, it does become public to everyone (as the name "publicly" suggests). It is NOT searchable (via Google, say) right now, but may become searchable later, when I implement something to encourage that. The only way to get it today is via a link, after you share it publicly. But that is temporary. The person getting the link does not need a SageMath account -- try opening the link in private browsing mode to see.

<a name-"no-answer"/>Question: What if my question isn't answered above?

Email [email protected] with lots of details about your question. Do not hesitate to immediately email us, because we are eager to hear from you!