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Frequently Asked Questions
Is the calculator really free?
Yes! Calculator Ti 84 is completely free to use. No downloads, no installations, and no hidden fees. Just open your browser and start calculating.
How accurate is the online calculator?
Our calculator uses the same mathematical functions as PHP's math library and provides results accurate to 10 decimal places. While we strive for accuracy, we recommend verifying critical calculations independently.
Can I use this calculator for exams?
Our calculator is designed for practice and learning. Most standardized exams require physical calculators. However, it's a great tool for homework, studying, and checking your work.
Is my calculation history saved?
Guest users' calculation history is saved for 7 days. Registered users enjoy permanent history storage linked to their accounts. You can clear your history at any time.
I found a bug. How do I report it?
Please use the contact form above and select "Bug Report" as the subject. Include as much detail as possible: the calculation you entered, the expected result, and the actual result. Screenshots are also helpful.
Do you have a mobile app?
We don't have a dedicated mobile app, but our calculator works great on mobile browsers. Simply visit ti84-calculator.com on your phone or tablet.