This terminal app runs on PCs or laptops running OSX or GNU/Linux. It attempts to mimic the functionality of an HP ReversePolishNotation [RPN] calculator with the added enhancement of interval output. So along with your answer, you get a good idea of its trustworthiness.
This app uses GAOL, a C++ library to perform arithmetic with floating-point intervals.
Some end user utilities for the Windows operating system.
The utilities can be called thru the "Send To" context menu when right-clicking on a file or directory in the explorer or thru the Windows "Start Menu".
The package can be 'installed' portable and does not need admin rights.
◆ 𝗨𝗧𝗜𝗟𝗜𝗧𝗜𝗘𝗦
- https://sourceforge.net/projects/wa2l-wintools/files/ → README
◆ 𝗙𝗘𝗔𝗧𝗨𝗥𝗘𝗦
- https://wa2l-wintools.sourceforge.net/man1/wintools.1.html
-...
A suite of RPN calculators and a class library for Object Pascal
...Class Libraries:
• RPN Engine: Full-featured calculation engine for Pascal-based RPN calculators
• Segmitator: Library for virtual seven-segment displays
Applications:
• TRURL A: Simple demo app for the RPN Engine
• TRURL B: RPN calculator in the design of the famous calculators by Dieter Rahms for Braun
• TRURL G: Desktop RPN calculator inspired by the UI of the DSKY unit of the Apollo Guidance Computer (AGC)