Physics

Curated lecture notes, LaTeX derivations, and diagram-rich research resources.

Blog Posts 👇

The basic idea of contour integration is to extend the concept of integration from the real line to the complex plane. Instead of integrating ...

By M. Lieber Received 18 June 1974

On the Theory of the Hydrogen Atom by V. Fock, Leningrad (Received August 5, 1935)

Theory of the Hydrogen Atom

A practical guide to editing the segmented Sass files inside the _sass directory without touching one huge CSS file.

A clear demonstration of headings, paragraphs, lists, links, tables, code blocks, and academic note structure.

A reusable quiz-writing demonstration using simple Q, A, B, C, D, ANSWER, and EXPLAIN lines with LaTeX support.

A practical demonstration of inline math, display equations, aligned derivations, and mobile-friendly equation writing.

A practical guide to the small YAML block that controls title, date, tags, permalink, and visibility in Jekyll posts.