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1. NumericalOJ NumericalOJ Public

   An online-judge system for scientific-computing languages (MATLAB, Octave or Baltamatica) and traditional languages (C/C++, Python), with a management system for students and classes.

   Python 3

2. AI-discuss-room AI-discuss-room Public

   Multi-agent discussion platform for collaborative problem-solving. No API required; integrates directly as a skill into Claude Code or Codex.

   Python

3. Discontinuous-Galerkin Discontinuous-Galerkin Public

   MATLAB and C++ implementations of Discontinuous Galerkin methods, including IPDG for Poisson, IPCG for Biharmonic, and HDG for mixed-form Poisson.

   C++

4. AMR-FV-Elliptic AMR-FV-Elliptic Public

   A fourth-order finite-volume solver for elliptic equations, with adaptive-mesh-refinement and parallel-computing techniques. The multi-box regions are naturally supported.

   C++

5. OI-Learning OI-Learning Public

   More than 1000 impressive algorithmic problems I've solved, sorted well with tags.

   C++ 5

6. Practical-Optimization-Algorithm Practical-Optimization-Algorithm Public

   Some useful optimization algorithms for high-dimensional problems, including quasi-newton, trust-region, non-linear CG and so on. Implemented with c++.

   C 3