How This Log Works
We keep this list so you can check how a page has changed and when. Small wording edits are not listed. Anything that changes a fact, a rule, a screenshot or an author credit is.
To report an error, email corrections@t84calculator.com with the page and what looks wrong. We reply within five working days.
2026
October 1, 2026
Removed three unsupported rating scores. The home page and graphing page showed star ratings with review counts that we could not support, because the site has no review system. The scores and both rating widgets were deleted rather than replaced.
October 1, 2026
Merged a duplicate TI-30XS page. Two URLs published the same TI-30XS calculator. The duplicate now redirects permanently to /ti-30xs-calculator/, so there is one page for that calculator and one address for search engines.
October 1, 2026
Corrected an author credit. The guide to the Chrome extension was credited to Muneeb S. It was written by Tariq G., who built the extension. His name now appears in the byline and in the page's structured data.
October 1, 2026
Rebuilt FAQ markup on nine pages. The hidden FAQ data on several pages listed questions that were not printed on the page. Every FAQ block now matches the questions a reader can actually see and read.
October 1, 2026
Fixed three broken references. The extension call-to-action pointed to a page anchor that no longer existed, one screenshot in the intersection guide had a doubled file extension and stopped loading, and the TI-30XS page pointed at the wrong script path. All three now load.
October 1, 2026
Chrome extension listing removed. Google removed our extension listing from the Chrome Web Store after our previous domain was suspended. We removed the "Add to Chrome" buttons from the header and the home page, because an install button that leads nowhere is worse than no button at all. The extension guide stays, with a status note explaining the rebuild. Both buttons will come back when the new listing is live.
October 1, 2026
Rewrote the privacy policy. The policy now names the third-party graphing library the calculator loads, lists the permissions the Chrome extension requests, and gives a real last-updated date instead of a placeholder.
October 1, 2026
Added author profiles and this transparency set. Every tutorial now shows a named author, a named reviewer and a last-updated date. We also published the author profiles, the editorial policy and the testing method.
October 1, 2026
Removed a script that rewrote the page title. The home page used a script to change the year inside its own title tag after loading. Search engines and readers saw different titles, so the script was deleted and the title is now fixed text.
How a Report Becomes a Fix
- You email the page address, the step or claim that looks wrong, and what you saw instead.
- The author of that page re-runs the step using the method on our how we test page.
- The reviewer repeats it independently. If both agree with you, the page is corrected.
- The change is dated and written into the log above, and the page's last-updated date moves.
Reports that include your browser, your device and the exact step number get fixed fastest. They are also the ones we can reproduce.