About Pi Trainer
Always wanted to learn the decimal expansion of pi or any other real number by heart? This simple yet powerful app helps you memorize hundreds of digits in no time. Featuring amongst other things a timed mode to improve...
Always wanted to learn the decimal expansion of pi or any other real number by heart? This simple yet powerful app helps you memorize hundreds of digits in no time. Featuring amongst other things a timed mode to improve on your and your friends' high scores and a fully customizable keyboard.
Just remember, knowing the first thirty digits of pi is enough to calculate the volume of the observable universe accurate to the size of one hydrogen atom. So who needs to know more digits? You of course!
The app includes the following numbers by default:
- pi;
- tau;
- Euler's number e;
- the square root of two;
- the golden ratio φ.
You can also add your own numbers. If you have any suggestions for numbers that should be included by default, feel free to let me know.
There are multiple training modes available.
- Practice mode lets you type out the number, notifies you when you're wrong and shows the total amount of errors made. You can change the starting position to focus on a particular part of the number.
- Reference mode shows all digits of the selected number. Add spaces at regular intervals to organize the number visually, or specify the number of digits per line.
- Complete mode shows you some digits and asks you to type the digits that come after them.
- Timed mode lets you type the digits from the beginning of the number and measures the time until the first error. See how many digits you typed per minute and improve on your achievements on the highscores page.
The app includes an optional in-app-keyboard, as the Android number keyboard has another layout than the calculator you might be used to. The key ordering, width and height can be adjusted to fully match your needs.
Thanks to Julien Freslon for translating the app into French! If you want to translate the app into your language, please let me know by sending an email.
If you have any feature requests or want to report a bug, please let me know. You can email me at
[email protected].
Previous Versions
Here you can find the changelog of Pi Trainer since it was posted on our website on 2019-10-25 11:42:00.
The latest version is 2.6.4 and it was updated on 2024-04-22 17:41:11. See below the changes in each version.
Pi Trainer version 2.6.4
Updated At: 2021-08-26
Changes: The app now contains Euler's number e up to 15 000 decimal digits.
Pi Trainer version 2.6.3
Updated At: 2020-10-28
Changes: The number of digits of π has been increased to 30,000, and the number of digits of the square root of two to 15,000; and the app now also includes the Euler-Mascheroni constant γ up to 2,000 digits.
Pi Trainer version 2.6.2
Updated At: 2020-06-09
Changes: The number of digits of π has been increased from 10,000 to 30,000; the app now also includes the Euler-Mascheroni constant γ up to 2,000 digits.
Pi Trainer version 2.6.1
Updated At: 2019-09-21
Changes: Bug fixes and stability improvements.
Added functionalities to the Reference screen:
- Set number of digits per line
- Scroll to and highlight the desired digit position
Disclaimer
Official Google Play Link
We do not host Pi Trainer on our servers. We did not scan it for viruses, adware, spyware or other type of malware. This app is hosted by Google and passed their terms and conditions to be listed there. We recommend caution when installing it.
The Google Play link for Pi Trainer is provided to you by apps112.com without any warranties, representations or guarantees of any kind, so access it at your own risk.
If you have questions regarding this particular app contact the publisher directly. For questions about the functionalities of apps112.com contact us.
