Quick answer
Programmer's calculator similar to an HP 16c.
Programmer's calculator based on Emmet Gray's WRPN 16c, which simulates an HP 16c. This is an RPN-based calculator that works in floating point, and integers expressed in hex, decimal, octal or binary. I modified Emmet's WRPN (with permission) so that it uses rendered fonts for the keys. This makes them look nice and crisp on high resolution displays.
I offer this software as-is, with no guarantee of any kind. The source is available on github. There's also a desktop Java version -- see https://jrpn.jovial.com/ for both.
Screenshots
How to install
- Download the APK from the button at the top of this page.
- Allow “Install unknown apps” for your browser or file manager only, not for every app.
- Open the downloaded file and confirm the installation.
- If installation fails with “App not installed,” remove an earlier build of the same app first. A signature conflict is the usual cause.
Data safety
- Every file is checked against its published SHA-256 before it is listed.
- Files are scanned for malware on every update.
- The permissions each app requests are listed on its own page.
- Read the full safety policy for how we test, flag, and delist files.
Frequently asked questions
What is JRPN 16c?
Programmer's calculator similar to an HP 16c.
Who develops JRPN 16c?
JRPN 16c is developed by Bill Foote.
Which Android version does JRPN 16c require?
JRPN 16c requires Android API 15 or later.
What is the current version of JRPN 16c?
The synchronized F-Droid version is 1.1.5.
Which license does JRPN 16c use?
The signed F-Droid metadata lists Apache-2.0.
Where is the source code for JRPN 16c?
https://github.com/zathras/JRPN_Android
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