# Documentation site for `jitr` `jitr` is a calculable R-matrix toolkit for nuclear-reaction modeling, uncertainty propagation, and optical-potential workflows. ## Documentation If you are new to the project, start with [Getting started](docs/getting-started.md), then browse the curated [example notebooks](docs/examples/index.md), and use the [API reference](docs/api/index.md) when you want implementation details. ## Site Contents ```{toctree} :maxdepth: 2 :titlesonly: :caption: Documentation docs/getting-started docs/tests docs/advanced-users docs/api/index docs/examples/index ```