# FastDecimal v1.0.1 - API Reference

## Modules

- Core
  - [FastDecimal](FastDecimal.md): Fast arbitrary-precision decimal arithmetic for Elixir.

- Integration
  - [FastDecimal.Compat](FastDecimal.Compat.md): `Decimal`-API-shaped facade. Drop in to migrate existing code
  - [FastDecimal.Ecto.Type](FastDecimal.Ecto.Type.md): `Ecto.Type` implementation for `FastDecimal`. Lets you use `FastDecimal`
as the value type for `numeric` / `decimal` columns.