Multi-Functional Calculator in PyQt6

This project is a multi-functional calculator built with PyQt6, offering a variety of features all in one GUI application. Below is an overview of the main functionalities:

1. Classic Calculator
   A standard calculator interface supporting basic arithmetic operations: addition, subtraction, multiplication, and division.

2. Programmer’s Calculator
   Convert decimal (DEC) values across different bases:

   • Hexadecimal (HEX)
   • Octal (OCT)
   • Binary (BIN)

3. Date Calculator
   Compute the difference between two dates (for example, the number of days or months between them).

4. Temperature Converter
   Convert temperature values between:

   • Celsius (°C)
   • Fahrenheit (°F)
   • Kelvin (K)

5. Angle Converter
   Convert angles between:

   • Degrees (Deg)
   • Radians (Rad)

6. Function Plotter
   Plot a mathematical function within a given range, including its:

   • Original function curve
   • First derivative
   • Second derivative

Installation

1. Download project files
2. Install the required dependencies (e.g., pyqt6, python-dateutil, matplotlib, etc.)
3. Run the main script using python3 main.py