A lightweight scientific RPN calculator modeled after the HP 35s, a fast and ergonomic pocket calculator.
✔️ Near-infinite RPN stack, with the most recent eight values visible
✔️ Minimalist interface, to stay out of your way so you can focus on calculations
✔️ Keyboard support!
✔️ User-configurable save file path
NanoRPN requires ttkbootstrap, which can be installed with pip according to the author's instructions:
python -m pip install ttkbootstrap
On MacOS and Linux, this should work in the default Terminal app. On Windows, Python can be installed from the Windows Store or python.org, and run using PowerShell (found in the Start Menu).
After ttkbootstrap is installed, download NanoRPN.py from this repository and navigate to its location in Terminal/PowerShell.
python3 NanoRPN.py [save-file-path]
If supplied, save-file-path will be used for both loading and saving state.
On MacOS, a shortcut can be created with Script Editor with a line similar to the following:
do shell script "source ~/.bash_profile; python3 ~/Documents/NanoRPN.py ~/.nanorpn_state"
On Windows, a shortcut can be created by right-click dragging python.exe and selecting "Create shortcut here", then editing the shortcut: Properties -> Shortcut tab -> Target:, and adding the arguments "path\to\NanoRPN.py" "%APPDATA%\.nanorpn_state".
| NanoRPN button | Default key | Alternate name |
|---|---|---|
| ⬅︎Bksp | Backspace | |
| Enter⬆ | Enter | |
| Drop⬇ | D | |
| ln | L | |
| (-) | N | Negate |
| 1/ | R | Reciprocal |
| √ | S | Square root |
| E | E | 10^ |
All numeric (0-9.) and arithmetic (+-*/^) buttons are themselves.
Keyboard configuration can be changed by simply editing NanoRPN.py line 126, btn_keys = which corresponds with button labels.
The theme can be changed by editing NanoRPN.py line 32, themename=, line 100, bootstyle=, line 102, bootstyle=, and line 136, bootstyle=.