Terms of Use
Last updated November 13, 2026
These terms cover your use of Calculus Corner (https://calculus-corner.com), run by Richard Shumate. By creating an account or using the site you agree to them. Our Privacy Policy explains how we handle your data.
Your account
- You must be at least 13 years old. If you're under 18, you need a parent's or guardian's permission.
- Give accurate information, keep your password private, and use your account only for yourself.
- You're responsible for what happens under your account.
The Semester Pass
- The Semester Pass is a one-time payment ($49) for 120 days of full access. It does not renew automatically.
- Live tutor sessions are limited to the tickets you have. A ticket is used when a tutor joins your chat, and a tutor may refund it.
- If you're unhappy with a purchase, email [email protected]. A refunded pass ends your full access.
Using the site fairly
- Don't harass tutors or other users, or send anything abusive or illegal through the chat.
- Don't try to break, overload, or get around the site's security or paywall, or scrape its content.
- We may suspend or close accounts that break these rules.
The AI tutor
The AI tutor is a computer program. It's usually helpful but it can make mistakes, so check its work, and ask a human tutor when it matters. It's meant to help you learn, not to do graded work for you; follow your school's rules on getting help.
Content
The lessons, problems and other material on Calculus Corner are ours or used with permission, and are for your personal learning. Embedded videos belong to their creators and are shown through YouTube under YouTube's terms.
No guarantees
We work hard to make the material correct and the site reliable, but we provide it "as is", without warranties, and we can't promise any particular grade or result. To the extent the law allows, our liability is limited to the amount you paid us in the last 12 months.
Changes
We may update these terms. If we make a significant change, we'll update the date above, and continuing to use the site means you accept the new terms.