Terms of Use
Last updated: November 4, 2026.
Site: https://hexascholar.com (the "Site"). The Site is operated by a business registered in the Republic of Korea (the "Operator"). Contact: [email protected]
By using the Site you agree to these terms. If you do not agree, please do not use it.
1. What the Site is
The Site offers interactive pages on university mathematics and quantitative finance. Each page explains one idea, lets you change inputs, gives a proof, and provides practice problems. The content is for education only.
2. Who may use it
The Site is written for university students and other adults. It is not directed to children under 13, and we do not knowingly collect their personal information. If you are under 18, you may read the pages, but you should ask a parent or guardian before sending us any personal information.
3. Using the content
You may read the pages, run the interactive tools, and link to the Site. You may quote short passages with attribution and a link.
Please do not copy substantial parts of the Site, republish it, or build a competing service from it without our written permission. Please do not use automated tools in a way that burdens the Site, and do not try to disrupt or bypass its security.
4. Third-party materials
Some parts of the Site use open-source software and fonts under their own licenses. See Open-Source Notices. Names of organizations and products mentioned on the Site belong to their owners. Mentioning a name does not mean the owner endorses the Site or is affiliated with it.
5. Accuracy and corrections
We check our content, and the About page describes how. Mistakes can still occur. Each page shows what has been reviewed and what has not. If you find an error, please tell us using the process on the Corrections page.
6. No warranty
The Site and its content are provided "as is" and "as available." To the extent the law allows, we do not make any promise that the content is correct, complete, or suitable for a particular purpose, or that the Site will always be available or free of errors. Do not rely on the Site for an exam or a job decision without checking against authoritative sources.
7. Limit on liability
To the extent the law allows, the Operator is not liable for indirect, incidental, special, or consequential damages, or for loss of profits, data, or opportunity, arising from your use of the Site. Nothing in these terms limits liability that cannot be limited under the law that applies to you.
8. Changes to the Site and these terms
We may change or remove content and may change these terms. We will post the new terms with a new date. Using the Site after that date means you accept the new terms.
9. Contact
Questions about these terms: [email protected].