# Licensing and third party notices

The original source code, explanatory text, generated figures and numerical data in this collection are offered under the root MIT license, as authorized by the project owner. The anonymous contributor attribution preserves the privacy choices of the supplied projects.

Bundled third party components retain their own licenses:

| Component | Purpose | License |
| --- | --- | --- |
| KaTeX | Offline MathML formula rendering | [MIT](licenses/KaTeX-MIT.txt), copyright Khan Academy and other contributors |
| TypeScript 5.8.3 | Local build compiler, not shipped as the browser runtime | [Apache 2.0](licenses/TypeScript-APACHE-2.0.txt) |

The complete KaTeX and project MIT notices are embedded in each standalone HTML. The built website also carries this file, the root license, and the `licenses/` directory. Optional Python testing and scientific dependencies are installed separately; they are not redistributed in this repository.

Files under `reference/` and `archive/` preserve historical snapshots. Retained library notices apply there as well. Scientific calculations and concept diagrams are not experimental device measurements.