---
title: Predefined Timing Functions
framework: quartzcore
role: collectionGroup
role_heading: API Collection
path: quartzcore/predefined-timing-functions
---

# Predefined Timing Functions

Constants that specify system-provided timing functions, used by init(name:).

## Topics

### Constants

- [linear](quartzcore/camediatimingfunctionname/linear.md)
- [easeIn](quartzcore/camediatimingfunctionname/easein.md)
- [easeOut](quartzcore/camediatimingfunctionname/easeout.md)
- [easeInEaseOut](quartzcore/camediatimingfunctionname/easeineaseout.md)
- [default](quartzcore/camediatimingfunctionname/default.md)