Free42

Free42


Free42 is a re-implementation of the HP-42S calculator and the HP-82240 printer.
It is a complete rewrite, not using any HP code, and it does not require an HP-42S ROM image.
Free42 is an Open Source project. The executables and source code are released under the terms of the GNU General Public License, version 2.
All third-party code used in Free42 is either in the public domain, or licensed under terms compatible with GPLv2, or used with the authors' permission.

Recent changes:
Eentering a number with an empty exponent (e.g. 1E or 1E-) would yield . Fixed.
When the screen orientation was set to "automatic", it would not honor any system-wide orientation lock. Fixed.
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Free
95
4.8
User ratings
1001
Installs
50,000+
Concerns
0
File size
3302 kb
Screenshots
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About Free42
Free42 is a re-implementation of the HP-42S calculator and the HP-82240 printer.
It is a complete rewrite, not using any HP code, and it does not require an HP-42S ROM image.
Free42 is an Open Source project. The executables and source code are released under the terms of the GNU General Public License, version 2.
All third-party code used in Free42 is either in the public domain, or licensed under terms compatible with GPLv2, or used with the authors' permission.

Recent changes:
Eentering a number with an empty exponent (e.g. 1E or 1E-) would yield . Fixed.
When the screen orientation was set to "automatic", it would not honor any system-wide orientation lock. Fixed.

Android Market Comments
A Google User
Saturday 11:28 PM
Very nice emulation particularly the programmable features. I'm so happy to now have it on my smartphone. The HP-42s has been my favorite pocket calculator; clean, simple interface and mathematically powerful.
A Google User
6 days ago
Look no further If you like RPN install this. No fuss, works as advertised. I'm running it on a Moto G 2nd Ed. I suspect HP made this program as a low key advert for the relaunch of the 42S. ;)
A Google User
Aug 18, 2015
Uses all the screen = bad The Clear calculator button is under my LG G3's back button. Screen will not reduce. Looking for another.
A Google User
Aug 10, 2015
Great RPN Calc Just like the HP 42S that got me through my mechanical engineering program. There's also a version I use on Linux and Windows.
A Google User
Jul 30, 2015
HP 42S The best calculator ever, and so is this app.Good work!