# Float

`Float` is the primitive type constraint for floating-point values.

## Examples

```dcdl
ratio = Float;
threshold = Float default 0.5;
```

## Relationship to Int

`Int` and `Float` are distinct primitive type constraints.
A `Float` constraint requires a concrete `Float`, and an `Int` constraint requires a concrete `Int`.

Arithmetic and comparison expressions can treat `Int` and `Float` as numeric values.
Mixed arithmetic produces a `Float` result.