English

Quick tutorial on configuring exim and email packages in Cygwin to send emails from Windows command line via SMTP server without authentication.

Reflects on simplifying time management from complex Emacs org-mode systems to pen-and-paper todo lists, finding that simpler tools lead to better focus and clearer thinking.

Converting regular panoramas to small-world fisheye style using coordinate transformation from rectangular to polar coordinates, with nonlinear radius mapping to control the virtual camera height.

Benchmarks comparing MATLAB, Python, C#, and C++ for scientific computing tasks, finding C# offers a good balance between development speed and runtime performance.

Beamer Writer update with equation support using [x^2] syntax and simplified figure insertion using [[fig.png]] notation.

How to use GitHub Pages and git branches to host paper reading seminars: keep compiled slides in master branch, source code in another branch, with automatic download links and version control.

Explores F# for implementing domain-specific languages, demonstrating turtle graphics and fractal generation with elegant syntax, async support, and parallel computing capabilities.

Switching from iPhone to Lumia 900: smooth Windows Phone experience, excellent keyboard input, tile interface, but limited app ecosystem and IE10 shortcomings.

Convex optimization as a powerful modeling language: express problems as objectives and constraints, then solve efficiently. Demonstrated with image denoising using CVX.

Restarting the blog with morning reading habits, jogging goals, and budget planning—small steps toward a more disciplined life.