Double
search: boost: 1.0 ---# Type: Double
A real number that conforms to the xsd:double specification
URI: [xsd:double](http://www.w3.org/2001/XMLSchema#double)
## Type Properties
| Property | Value |
| -------- | ----------------------------------------------------- |
| Base | `float` |
| Type URI | [xsd:double](http://www.w3.org/2001/XMLSchema#double) |
## Notes
- If you are authoring schemas in LinkML YAML, the type is referenced with the lower case "double".
## Identifier and Mapping Information
### Schema Source
- from schema: https://w3id.org/ai-atlas-nexus/ai-risk-ontology
## Mappings
| Mapping Type | Mapped Value |
| ------------ | ------------ |
| self | xsd:double |
| native | nexus:double |
| close | schema:Float |