Lagrange Interpolation
Approximate functions using polynomial interpolation without solving linear systems.
Recent posts
Lagrange Duality
Derive and interpret the dual form of an optimization problem.
Plotting Ellipses
Plot ellipses using conic, quadratic, and parametric representations.
Numpy Regression Trees
Implement a regression tree from scratch using only numpy.
Quadratic Penalty Algo
Solve constrained optimization problems using your favorite unconstrained solver.
3D Plotting using Non-Rectangular Grids
Create cleaner 3D surface plots using radial and elliptical grids in matplotlib.
Nonlinear Least Squares
Fit nonlinear models using Gauss-Newton and Levenberg-Marquardt algorithms.