RPNCalc

A fast, lightweight Reverse Polish Notation calculator built with Lazarus and Free Pascal.

RPNCalc is a desktop calculator designed for users who prefer the efficiency of RPN (postfix notation). By eliminating the need for parentheses, it allows for faster complex calculations and provides a clear view of the evaluation stack.

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🚀 Features

• RPN Engine: Efficiently handle complex expressions without parentheses.
• Visual Stack: See exactly what is on the stack at any given time.
• Native Performance: Built with Free Pascal for high speed and low memory usage.
• Standalone Binary: No heavy dependencies or installers required for Linux.

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🛠 Getting Started

Prerequisites

• Lazarus: the Free Pascal RAD IDE. If you can run Lazarus on your platform, you can compile this code.

Installation

You can run the standalone binary immediately if you are running a 64-bit Linux distribution.

1. Download the latest release from the Releases page.
2. Open your terminal and navigate to the download folder.
3. Give the file execution permissions:

   chmod +x rpncalc
   

4. Run the application:

   ./rpncalc
   

Building from Source

To compile the project yourself, you will need the Lazarus IDE:

1. Clone the repository:

   git clone [https://github.com/tailkinker/RPNCalc.git](https://github.com/tailkinker/RPNCalc.git)
   

2. Open Lazarus.
3. Go to Project > Open Project and select rpncalc.lpi.
4. Press F9 to build and run.
5. Alternately, run lazbuild rpncalc.lpi in the source directory.

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📜 License

Distributed under the GNU GPL v3 License. See LICENSE for more information.

Author: tailkinker