This project is a simple function plotter application built using PySide2 for the GUI and Matplotlib for plotting. The application allows users to input a mathematical function and plot its graph over a specified range.

• Input a function of x, e.g., 5*x^3 + 2*x.
• Specify minimum and maximum values for x.
• Supports operators: +, -, /, *, ^, log10(), sqrt().
• Input validation with user-friendly error messages.
• GUI built using PySide2.
• Plotting powered by Matplotlib.

This project is developed and tested using Python 3.9. Due to compatibility issues with PySide2 in newer Python versions, it is highly recommended to use Python 3.9 for running this application.

1. Clone the repository:

   git clone https://github.com/yourusername/FunctionPlotterProject.git
   cd FunctionPlotterProject

2. Create a virtual environment:

   python -m venv venv
   source venv/bin/activate   # On Windows, use `venv\Scripts\activate`

3. Install the required dependencies:

   pip install -r requirements.txt

To run the application, execute the following command:

python src/main.py

• Function: 5*x^3 + 2*x
• Range: 0 to 10
• Expected Output: Parabolic curve.
  
  

• Function: 5*x^3 + 2*x + !
• Range: 0 to 10
• Expected Output: Error message: "Function contains invalid characters."
  
  

• Function: 5*x^3 + 2*x -4/x + 7
• Range: -10 to 10
• Expected Output: Combined plot of Cubic and rational functions.
  
  

• Function: 2*x^4 - log10(x) + sqrt(x)
• Range: 0 to 50
• Expected Output: Combined plot of square root, logarithm, and quadratic function.
  
  

• Function: 2*x^4 - log10(x) + sqrt(x)
• Range: -50 to 500
• Expected Output: Error message: "Min value must be non-negative for functions with log10 or sqrt."
  
  

• Function: x
• Range: a to 2
• Expected Output: Error message: "Min and Max values must be numbers."
  
  

• Function: x
• Range: -inf to inf
• Expected Output: Straight 45deg line from -inf to +inf
  
  

• Function: 5
• Range: -10 to 10
• Expected Output: Straight horizontal line from -inf to +inf