# User guide

Source: https://pianistpy.com/docs/guide/

Each page of the User guide covers one topic. Every class and function name on a User guide page links to the entry of
that class or function on the [Functions by subpackage](https://pianistpy.com/docs/reference/api/index) pages.

- [Models](https://pianistpy.com/docs/guide/models)

- [Particles (Sampler)](https://pianistpy.com/docs/guide/particles)

- [Observables](https://pianistpy.com/docs/guide/observables)

- [Superposition and inference](https://pianistpy.com/docs/guide/superposition)

- [Units](https://pianistpy.com/docs/guide/units)

- [Accuracy](https://pianistpy.com/docs/guide/accuracy)

- [Input and output (write, read)](https://pianistpy.com/docs/guide/input-output)

- [Runtime options](https://pianistpy.com/docs/guide/runtime)