---
title: NSAnimation.Curve.easeIn
framework: appkit
role: symbol
role_heading: Case
path: appkit/nsanimation/curve/easein
---

# NSAnimation.Curve.easeIn

Describes an animation that slows down as it reaches the end.

## Declaration

```swift
case easeIn
```

## See Also

### Constants

- [NSAnimation.Curve.easeInOut](appkit/nsanimation/curve/easeinout.md)
- [NSAnimation.Curve.easeOut](appkit/nsanimation/curve/easeout.md)
- [NSAnimation.Curve.linear](appkit/nsanimation/curve/linear.md)