🧮 Lagrange Interpolation Calculator

This Python script calculates the Lagrange Interpolation Polynomial for a given set of points.
It's a step-by-step, interactive CLI tool that helps you compute the interpolation and visualize the resulting simplified polynomial.

🎥 Demo

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📌 Features

• Interactive input of (x, y) points
• Eliminates duplicate entries
• Constructs the Lagrange basis polynomials
• Outputs the final simplified interpolation polynomial in human-readable math format using SymPy

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🛠️ Requirements

• Python 3.6+
• sympy library

Install with:

pip install sympy

🚀 How to Use

Run the script:

python lagrange_interpolation.py

Then enter your data points interactively:

x_0: 1
y_0: 2
x_1: 2
y_1: 3
x_2:
wanna break?Y/N: Y

The result will be printed in a simplified algebraic form, such as:

x + 1

📄 License

This project is licensed under the MIT License.