2 Play around with lagrange interpolation online
3 Live Version: https://eliasfleckenstein03.github.io/lagrange-playground/
6 - Leftclick to add a point
7 - Scroll to zoom in/out
8 - Drag a point to move it
12 The Lagrange Polynominal Interpolation Algorithm creates a polynomial that goes through all given points.
13 It is described here: https://en.wikipedia.org/wiki/Lagrange_polynomial