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.

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