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A suite of RPN calculators and a class library for Object Pascal
TRURL is a suite of desktop calculators with reverse Polish notation (RPN) written in Object Pascal. Additionally, it comes with a free reusable class library (RPN Engine) as a toolbox for creating your own calculator.
TRURL is an acronym for "TRURL is a Reusable Universal RPN Library".
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)