# Sandbox.Utility.Easing.ExpoIn

```csharp
static float ExpoIn(float f)
```

Exponential ease in.

### Parameters

- `f` (`float`): Input in range of 0 to 1.

### Returns

`float`: Output in range 0 to 1.

Declared in [Sandbox.Utility.Easing](/api/Sandbox.Utility.Easing).
Assembly: `Sandbox.System`.