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Katex examples

KaTeX\KaTeX

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

You can use KaTeX\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)=∑n=0∞(−1)n(2n+1)!x2n+1 \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=∑i=1n(xi−xˉ)(yi−yˉ)∑i=1n(xi−xˉ)2∑i=1n(yi−yˉ)2 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\KaTeX for a post, include katex = true within the [extra] section of the post's front matter. For enhanced performance and security, the JavaScript, CSS, and fonts are hosted locally.

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