January 28th, 2022
Windows 11 / Windows 10 / Windows 8 / Windows 7
Free42 is a free to use calculator that’s styled after the HP-42S. It can perform various advanced calculations and customize its appearance with skins.
This project is an open-source version of the RPN calculator used by the HP 42S. It does not require a ROM or a hardware update to work properly.
This application is based on the RPN calculator of the HP-42S. It features a clean interface and a variety of functions that are similar to the original.
With Free42, you can easily modify the functions and expressions that you use in the app.
How to install Free42?
1. Download the file.
2. Open the application and click on "Install ".
3. Follow the steps that appear on the screen.