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# inverse

Returns a copy of the curve with its x and y components swapped.

```
var inverse: UnitCurve { get }
```

## Discussion

The inverse can be used to solve a curve in reverse: given a
known output (y) value, the corresponding input (x) value can be found
by using `inverse`:

```
let curve = UnitCurve.easeInOut

/// The input time for which an easeInOut curve returns 0.6.
let inputTime = curve.inverse.evaluate(at: 0.6)
```

---

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