# easeInExpo constant Null safety

A cubic animation curve that starts slowly and ends quickly. This curve is
based on an exponential equation where `f(t) = 2¹⁰⁽ᵗ⁻¹⁾`

.

Using this curve can give your animations extra flare, but a longer duration may need to be used to compensate for the steepness of the curve.

Compared to Curves.easeInQuint, this curve is slightly steeper.

Derived from Robert Penner’s easing functions.

## Implementation

```
static const Cubic easeInExpo = Cubic(0.95, 0.05, 0.795, 0.035);
```