Huascar Sanchez's website

Post dates

Blog posts display their publication date beneath the title automatically. Jekyll uses the date in the YYYY-MM-DD-title.md filename unless the post's front matter supplies a date override. Ordinary pages do not show a post date.

Math equations

The site uses Kramdown to process LaTeX math notation and MathJax to render it in the browser. Enable rendering on a page or post by adding math: true to its existing YAML front matter:

---
layout: default
title: An example with equations
math: true
---

Use double dollar signs for inline math within a paragraph:

Einstein's equation is $$E = mc^2$$.

For a display equation, put the delimiters on their own lines, with blank lines before and after the block:

The sample mean satisfies:

$$
\sum_{i=1}^{n} x_i = n\bar{x}
$$

Kramdown uses $$...$$ for both inline and display math, depending on placement. Use \vert instead of a literal | inside inline equations to avoid Markdown table parsing. Code blocks show the notation literally.

MathJax loads from jsDelivr only on pages with math: true, so visitors need network access to that CDN to render equations. Restart a local Jekyll server after changing _config.yml.

References: Kramdown math syntax and MathJax loading.

Mermaid diagrams

Add mermaid: true to a page or post's existing front matter (it can be combined with math: true), then write Mermaid source directly in fenced Markdown blocks:

```mermaid
flowchart LR
    accTitle: Evaluation workflow
    accDescr: A draft is evaluated and either published or revised and evaluated again.
    A[Draft] --> B{Evaluate}
    B -->|Pass| C[Publish]
    B -->|Revise| A
```

Diagrams render as SVG in the browser, with responsive sizing and colors that follow the site's light/dark toggle. Use accTitle and accDescr to describe diagrams for assistive technology. Multiple diagrams are supported in one post.

Mermaid loads from jsDelivr only on opted-in pages containing diagram blocks. If JavaScript is disabled, the CDN is unavailable, or the diagram has invalid syntax, its source remains visible. No exported image or Jekyll plugin is needed.

Reference: Mermaid diagram syntax.

Algorithms

Add algorithms: true to a post or page's existing front matter:

algorithms: true

Write LaTeX-style algorithm source directly in a fenced algorithm block:

```algorithm
\begin{algorithm}
\caption{Sum a sequence}
\begin{algorithmic}
\REQUIRE A sequence $x_1, \ldots, x_n$
\STATE $s \gets 0$
\FOR{$i \gets 1$ \TO $n$}
    \STATE $s \gets s + x_i$
\ENDFOR
\RETURN $s$
\end{algorithmic}
\end{algorithm}
```

The website renders captions, line numbers, indentation, and math using pseudocode.js and KaTeX. Multiple algorithm blocks are numbered in post order. Use uppercase commands such as \STATE, \IF/\ENDIF, \WHILE/\ENDWHILE, and \PROCEDURE/\ENDPROCEDURE. Only the library's LaTeX subset is supported; this does not compile arbitrary LaTeX packages such as algorithm2e.

Algorithms work without math: true; add that flag when the surrounding prose also contains Kramdown math. The algorithm renderer uses KaTeX independently of the site's MathJax renderer. Colors follow the site's light/dark theme.

Dependencies load from jsDelivr only on pages with algorithms: true. Source remains visible if rendering fails or JavaScript is disabled. Zed's Markdown preview shows the source block; formatted algorithm rendering is on the website.

Reference: pseudocode.js syntax.