WRPN 16c

Emmet Gray

About this app

It uses Reverse Polish Notation (RPN), which uses the ENTER key instead of the "=" (equals) key.

In addition to all the functions you'd expect from an ordinary calculator, WRPN 16c also has many features specifically designed for the computer professional:

• Word sizes from 1-64 bits per word
• Signed math (1's complement, 2's complement, unsigned)
• Logical operators (and, or, xor, not, masks, etc)
• Bit-wise operators (shift, rotate, rotate with carry, etc)
• 32 storage registers
• 4 position stack
• 203 lines of program memory

WRPN 16c is available on other platforms, such as Windows, MacOS, and Linux from the following web site http://www.wrpn.emmet-gray.com

Note: The source code to WRPN 16c is also available!

Ratings and reviews

On my Motorola G8 Power (Android 10) the right-hand side of the numeric display is "missing". So the first ~4 characters (in dec/hex/oct/bin mode) can't be seen. It was OK on an older Motorola phone (Android 6). A pity, as it makes it unusable. 11 June 2021 - I tried the update (and phone is now on Android 11). This has a more severe problem. Input no longer works. The keys icons all "move" a little, but no numbers appear at all. 17 June 2021. Latest update now working OK. Only "complaint" is the ON button doesn't do anything. If it worked as ON/OFF it would be a quick way to clear the registers and display.

WRPN 16 has been my "go-to" calculator for several years, both on Android and to a lesser extent the Java version on Mac OS X. The new auto-scale font approach and dynamic layout introduced June 2021 make it even better -- before that the screen was a bit clunky on a couple of my high-res phones.

I used this for years and loved it, even though it was always a bit buggy. The latest release forces a title bar at the top of the image that messes up the calculators proportions and makes it hard to use.

What's new

New configuration property for selecting the number format
Support globalization of number formats
Implemented the Mantissa Display feature

Programming-related functions act more like the physical calculator
Many tweaks to Single Stepping function
Fix for recording the Double Precision Remainder in a program file
Fix reading BigInt values from a recorded XML file
Fix error in Double Divide
Implemented GSB I and GTO I