Dozecal1.0.9 - App Store
You'll be able to see results in few seconds.
Publisher Description
Dozecal is an educational RPN* calculator to promote the use of Base Twelve in math and science.
The usual math functions are available in both DUODECIMAL and DECIMAL modes.
Conversion is automatically made when switching from one mode to the other one.
Trigonometric operations uses DEGREE as unit of measure.
For more information about Base 12, please visit the Dozenal Society of America.
* RPN : the Dozecalc calculator uses the Reverse Polish Notation (RPN). This notation seems complex but has many advantages over algebraic notation and is more intuitive once you have understood the idea.
The calculator has a stack and any operation that requires two numbers is using the bottom stack layers (X and Y). Key ENTER to push the stack up and separate one number from the next. To perform arithmetic, key in the first number, press ENTER to separate the first number from the second, then key in the second number and then select and operator such as the numerical functions +, -, * or /. The result appears immediately after you press the numerical function key. The operator is keyed in only after both operands are in the stack.
Example: calculate 3 + 4
Key sequence: 3 ENTER 4 +
Result: 7
The result of any operation may itself become an operand. You do not need to press enter again to use the result. The "7" is already entered.
Example: add 2 to the previous result
Key sequence: 2 +
Result: 9
Example: calculate 5 * (3 + 4)
Key sequence: 3 ENTER 4 + 5 *
Alternate key sequence: 5 ENTER 3 ENTER 4 + *
Disclaimer: results and precision may occasionally be incorrect. Should you report them at johan@unumdesignum.com, and the author will be happy to fix !
Version History Some minor bug fixes 1.0.9 08/10/2025 • Fixed: a wrong calculation with logarithms.
• Improved: one can now enter up to 20d (decimal) or 18z (dozenal) digits for a better precision. 1.0.7 01/31/2024 Bug fixes : ipad support in landscape mode and issue with y^x function. 1.0.6 09/07/2023 Switch to the PITMAN representation of 10d and 11d.
About section: f+EEX.
Bug fixes. 1.0.5 09/04/2023 • Avoid engineering notation for simple numbers such as 0;00000xyz, for better readability.
• A short RPN tutorial is available (EEX key). 1.0.3 11/20/2022 Bug fixes release: better management of the stack (x, y, z, t) in order to get closer to the RPN original way.
Reminder: this calculator is based on the Reverse Polish Notation, that means that it works like you would do with a piece of paper.
e.g. for this operation "23+17/5", the sequence is:
23 ENTER
17 ENTER
5
/
+ 1.0.2 01/27/2022 1.0.0 07/02/2020
About Dozecal
The company that develops Dozecal is Johan Kovacs. The latest version released by its developer is 1.0.9.
To install Dozecal on your iOS device, just click the green Continue To App button above to start the installation process. The app is listed on our website since 2026-10-14 and was downloaded 0 times. We have already checked if the download link is safe, however for your own protection we recommend that you scan the downloaded app with your antivirus. Your antivirus may detect the Dozecal as malware if the download link is broken.
How to install Dozecal on your iOS device:
- Click on the Continue To App button on our website. This will redirect you to the App Store.
- Once the Dozecal is shown in the iTunes listing of your iOS device, you can start its download and installation. Tap on the GET button to the right of the app to start downloading it.
- If you are not logged-in the iOS appstore app, you'll be prompted for your your Apple ID and/or password.
- After Dozecal is downloaded, you'll see an INSTALL button to the right. Tap on it to start the actual installation of the iOS app.
- Once installation is finished you can tap on the OPEN button to start it. Its icon will also be added to your device home screen.
Program Details
System requirements
Download information
Pricing
Version History
version 1.0.9
posted on 2026-10-14
Version History Some minor bug fixes 1.0.9 08/10/2025 • Fixed: a wrong calculation with logarithms.
• Improved: one can now enter up to 20d (decimal) or 18z (dozenal) digits for a better precision. 1.0.7 01/31/2024 Bug fixes : ipad support in landscape mode and issue with y^x function. 1.0.6 09/07/2023 Switch to the PITMAN representation of 10d and 11d.
About section: f+EEX.
Bug fixes. 1.0.5 09/04/2023 • Avoid engineering notation for simple numbers such as 0;00000xyz, for better readability.
• A short RPN tutorial is available (EEX key). 1.0.3 11/20/2022 Bug fixes release: better management of the stack (x, y, z, t) in order to get closer to the RPN original way.
Reminder: this calculator is based on the Reverse Polish Notation, that means that it works like you would do with a piece of paper.
e.g. for this operation "23+17/5", the sequence is:
23 ENTER
17 ENTER
5
/
+ 1.0.2 01/27/2022 1.0.0 07/02/2020
version 1.0.9
posted on 2025-08-10
Aug 10, 2025
Version 1.0.9
Some minor bug fixes
version 1.0.9
posted on 2025-08-10
Some minor bug fixes
version 1.0.7
posted on 2024-01-31
Jan 31, 2024
Version 1.0.7
• Fixed: a wrong calculation with logarithms.
• Improved: one can now enter up to 20d (decimal) or 18z (dozenal) digits for a better precision.
Disclaimer
Official App Store Link
We do not host Dozecal on our servers. We did not scan it for viruses, adware, spyware or other type of malware. This app is hosted by Apple and passed their terms and conditions to be listed there. We recommend caution when installing it.
The App Store link for Dozecal 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.
