Easing equation for an atan ease-out, decelerating from zero velocity. The a parameter is curvature.
Use value, *value, *kr or *ar, all with a Float argument t between 0.0 and 1.0. If t is below or above this range the output will be undefined.
t |
a Float between 0.0 and 1.0. |
a |
overshoot. The default is 15. |