Privacy Policy
1. Overview
Mathematical Visualizations is a collection of interactive mathematical explorations built with HTML5 Canvas and WebGL. No account, login, or personal information is required to use this site.
2. Analytics — Google Analytics 4
This site uses Google Analytics 4 to collect anonymous usage statistics — for example, which pages are visited and how users navigate the site.
Google Analytics only activates after you click "Accept" on the cookie banner. If you click "Decline," the analytics script loads but no data is sent and no cookies are set.
When active, Google Analytics may collect:
- Pages visited and time spent on each page
- Approximate geographic location (country / region — your full IP address is not retained by Google)
- Device type, operating system, and browser
- Referral source (e.g. a search engine or a link)
Analytics data is processed by Google Ireland Limited under Google's Privacy Policy and Data Processing Terms.
3. Cookies and local storage
If you click Accept, Google Analytics sets the following first-party cookies in your browser:
_ga— distinguishes users; expires after 2 years_ga_XXXXXXXXXX— stores session state; expires after 2 years
Your consent choice ("accept" or "decline") is saved in your browser's
localStorage under the key mv_consent so the banner does not
reappear on subsequent visits. This value never leaves your device.
If you click Decline, no cookies are set by this site.
4. Your rights and choices
Withdraw consent: Open your browser's developer tools
(F12 → Application → Local Storage → this site), delete the mv_consent key,
and reload the page. The consent banner will reappear.
Opt out of Google Analytics globally: Install the Google Analytics Opt-out Browser Add-on.
Delete cookies: Use your browser's cookie management settings to remove
the _ga cookies at any time.
5. Data we do not collect
- Names, email addresses, or other identifying information
- Payment data
- Passwords or authentication credentials
- The specific mathematical parameters you explore in any visualisation
6. Children's privacy
This site does not knowingly collect data from anyone under 16 years of age. If you believe a child has submitted personal information, please contact us so we can remove it.
7. Changes to this policy
If this policy changes materially, the "Last updated" date above will be revised. Continued use of the site after changes constitutes acceptance of the updated policy.
8. Contact
Questions about this privacy policy: zaza031103@gmail.com