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
929
Installs
50,000+
Concerns
0
File size
3302 kb
Screenshots
Screenshot of Free42 Screenshot of Free42
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.

User reviews of Free42
I have been a HP-42s user since 1991. I am very pleased with the Free42 emulator. I have used the versions for Palm OS, Windows, and now Android.
Apr 11, 2011
Android Market Comments
A Google User
3 hours ago
Excellent substitute for the real thing. The closest thing I could find to the HP 32 sII. A highly recommended app for any who may have experience in surveying or general contracting.
A Google User
May 12, 2015
Nice but graphics need work A more photo realistic version would be nice.
A Google User
May 9, 2015
Amazing calculator I have used the HP42s for years. Reverse polish is the way to go. Having lost one replacing it with another, I have now discovered this emulator and use it on every platform on which I operate. It is my primary windows calculator and my real HP42S stays at home.... I would recommend this to anyone who does any simple or complex calculations.
A Google User
Apr 28, 2015
Fantastic Works great and does not have ads! !Thank you very much! (We need a classic 35 made in the same way. Please? ;) )
A Google User
Apr 25, 2015
Nice but graphics need work A more photo realistic version would be nice.
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