Schur Complement
Block Matrix There are 2 Schur complement matrix is considered. and How we can convert original matrix? If is reqular,…
Physics
kevin-tofu Operation of Sparse Matrix in Scipy
About Under Construction https://docs.scipy.org/doc/scipy/reference/sparse.html The document says that Code Snippet Block Matrix Solve Linear Equation with lsmr lsmr solves the…
Comparison between Sparse Dense Matrix to Solve Linear Equation
Code Result N=10000 N=50000 N=10000000
Practice OpenMDAO
About In the last article(https://eye.kohei-kevin.com/2025/03/03/optimization-solver-ooenmdao/), I tested simple non linear optimization problem with a liner constraint. I tried other form…
Optimization Solver : OpenMDAO
About There are not many options for solving complex nonlinear optimization problems. When you want to try something out with…
FramAT, Nice Project to understand Beam Element Analysis
About There are many free structural analysis tools available.FreeFEM++, OpenSees, salome-meca… However, they are surprisingly difficult to use. FreeFEM++ uses…
Harrow-Hassidim-Lloyd Algorithm
About Many people say that quantum computers can perform calculations faster. But what specific calculations become faster? In reality, quantum…
Note : Q-Learning
Introduction As I mentioned below article, there are many techniques that is used for Q learning. To summarize it, I…
Unified form of elastic mechanic
Introduction The following article provides a detailed summary of the weak form equations in elastic mechanics. However, since it is…
Rotation of a rigid body and Jahnibekov Effect
Introduction I found a video like the following on YouTube: it captured the behavior of a rigid body rotating in…