Lagrange and cubic spline interpolation

A Python implementation (without external math libraries) of Lagrange and Cubic spline function interpolation. A numerical methods project for my university.
Soon I will update the README with more details.

Features:

• Importing original data from CSV file
• Matrix handling functions
• LU decomposition with pivoting
• Lagrange and Cubic spline interpolation classes

External libraries used:

• Matplotlib (used for plotting functions)