Markdown examples

$\KaTeX$

$\KaTeX$ is a fast and easy-to-use library that enables the rendering of mathematical notation, using LaTeX syntax.

You can use $\KaTeX$ inline by wrapping the expression between $ or between \\( and \\).

For example, $ \sin(x) = \sum_{n=0}^{\infty} \frac{(-1)^n}{(2n + 1)!} x^{2n + 1} $ would render: $ \sin(x) = \sum_{n=0}^{\infty} \frac{(-1)^n}{(2n + 1)!} x^{2n + 1} $

To display the expression on its own line and centered, wrap it around $$ or between \\[ and \\].

For example, \\[ r = \frac{\sum_{i=1}^{n}(x_i - \bar{x})(y_i - \bar{y})}{\sqrt{\sum_{i=1}^{n}(x_i - \bar{x})^2}\sqrt{\sum_{i=1}^{n}(y_i - \bar{y})^2}} \\] renders: \[ r = \frac{\sum_{i=1}^{n}(x_i - \bar{x})(y_i - \bar{y})}{\sqrt{\sum_{i=1}^{n}(x_i - \bar{x})^2}\sqrt{\sum_{i=1}^{n}(y_i - \bar{y})^2}} \]

To activate $\KaTeX$ for a post or an entire section, include katex = true within the [extra] section of the front matter. For exemple:

title = "Testing KaTeX"
date = 2002-11-30

[extra]
katex = true

You may enable it globally as well, by setting katex = true in the [extra] section of your config.toml.

For enhanced performance and security, the $\KaTeX$ JavaScript, CSS, and fonts are hosted locally.

Note: After enabling $\KaTeX$, if you want to use $ without rendering a mathematical expression, escape it with a single backslash: \$.

Table

Here’s an example of a table¹. Its colours change depending on the current theme.

Code Block

fn main() {
    println!("Hello, world!") -> ();
}

With line numbers

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use std::collections::HashMap;
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#[derive(Debug)]
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struct TwinPeaksCharacter {
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    name: String,
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    coffee_rating: f32,
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    pie_preference: String,
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}
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fn main() {
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    let mut black_lodge = HashMap::new();
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    black_lodge.insert("agent", TwinPeaksCharacter {
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        name: String::from("Dale Cooper"),
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        coffee_rating: 9999.99,
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        pie_preference: String::from("Damn Fine Cherry"),
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    });
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    black_lodge.insert("giant", TwinPeaksCharacter {
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        name: String::from("The Fireman"),
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        coffee_rating: 42.424242,
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        pie_preference: String::from("Garmonbozia"),
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    });
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    // Calculate total appreciation of damn fine coffee
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    let total_coffee: f32 = black_lodge.values()
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        .map(|character| character.coffee_rating)
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        .sum();
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    println!("☕ Total coffee appreciation: {:.2} cups", total_coffee);
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}

Code tags

In Rust, you declare a mutable variable with let mut x = 5;, whereas in Python, you simply use x = 5. Similarly, to print a value in Rust, you would use println!("Value: {}", x);, but in Python, it’s as straightforward as print(f"Value: {x}").

Quote

“We’re all hurtling towards death. Yet here we are, for the moment, alive. Each of us knowing we’re going to die. Each of us secretly believing we won’t.”

— Charlie Kaufman, Synecdoche, New York