The calculator runs Linux (of course) and a free TI simulator environment in the hopes of easing the transition of anyone who grew up using TI’s graphing calculators.

This glorious specimen is an open hardware RPN calculator with more than a nod to the venerable Hewlett Packard HP42 in its design.

Alt1 is a free open source minimalist calculator application for Windows that can be entirely used from the keyboard. It lets you solve general expressions and supports all scientific operators.

Have you ever wanted to know exactly how the Windows 10 Calculator works or want to extend its functionality? Now you can, as Microsoft has open-sourced their Windows Calculator so that anyone can ...

Microsoft is making available the Windows Calculator source code, build system, tests and roadmap as open source under an MIT license.

On March 6, 2019, Microsoft opened source " Windows calculator " which is standard in Windows 10 under MIT License and released the source code on GitHub. In addition, future development ...

To use Calculator to convert units in Windows 11, you can follow the guide mentioned above. However, you must have the latest version of the Calculator app, which includes all the above options.