Hello, world

seed · Jun 14, 2026

This is a throwaway article that doubles as a smoke test for the technical reading layout: a table of contents, math via KaTeX, and figures that break out wider than the text column. Delete it once the first real note is written.

Math

Inline math renders mid-sentence, like the mass–energy relation $E = mc^2$ or a sum $\sum_{i=1}^{n} i = \tfrac{n(n+1)}{2}$ .

Display math gets its own centered block:

\hat{\mathbf{w}} = \arg\min_{\mathbf{w}} \; \frac{1}{2n} \sum_{i=1}^{n} \left( y_i - \mathbf{w}^\top \mathbf{x}_i \right)^2 + \lambda \lVert \mathbf{w} \rVert_2^2

Very wide equations scroll horizontally instead of breaking the layout.

A subsection

Third-level headings show up indented in the table of contents, so longer technical pieces stay navigable.

Figures

A <figure> breaks out wider than the reading column — useful for diagrams and plots:

Figure 1. Replace with a real diagram (SVG or transparent PNG).

Tables

Maturity	Meaning
seed	early, unrefined
growing	actively developing
evergreen	durable, maintained