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Catalog

30,057 projects in the catalog.

Free Pascal, Lazarus and Delphi components, libraries and programs from GitHub, SourceForge, Codeberg, GitLab and more. Rate them, mark what looks interesting, and talk about them on their benches.

trurl

TRURL is a Reusable Universal RPN Library. It is a free class library (RPN Engine) as a toolbox for creating desktop calculators with reverse Polish notation (RPN) written in Object Pascal. Additionally, it comes with several ready-to-use calculator apps.

  • Active
  • Library
  • Lazarus
  • GitHub
  • ★ 5

Science

trurl

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 G: Desktop RPN calculator inspired by the UI of the DSKY unit of the Apollo Guidance Computer (AGC)

  • Active
  • Application
  • Lazarus
  • Codeberg
  • ★ 3

Science

PapajLang

:uk:🌐 Reverse Polish Notation (RPN) Calculator and interpreter of PapajScript language

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 10

Language Tools

TRURL

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)

  • Active
  • Application
  • SourceForge
  • BSD License

Science

Infix-to-postfix

This program created to convert expressions from infix form to postfix form (reverse polish notation)

  • Archived
  • Other
  • Delphi
  • GitHub
  • ★ 6
  • MIT

Learning and Examples

loxip

Lox interpreter written in Free Pascal

  • Quiet
  • Application
  • Lazarus
  • GitHub
  • ★ 4
  • MIT

Language Tools

RPNCalc

RPN calculator written in Free Pascal / Lazarus. Supports standard functions, trigonometry with angle modes (deg/rad/gra) and stack operations (Swap, Drop, Dup).

  • Active
  • Application
  • Lazarus
  • GitHub
  • ★ 2
  • GPL-3.0

Applications