Blog
Notes on mathematics, code, and research.
From gradients to variations: stationarity, constraints, and discretization
A common perturbation viewpoint connects zero gradients, Euler–Lagrange equations, KKT conditions, and Galerkin discretization.
Keeping textbooks, questions, and learning materials together
An introduction to VeryMath Course Copilot, a local study workspace organized around reading a textbook.
When an iteration comes full circle: counterexamples for three-block ADMM
An algorithm can keep moving without approaching a solution. Two periodic orbits illustrate how a numerical observation can become a precise mathematical counterexample.