Sass easing functions

sass-easing-functions.scss

$ease-in-sine: cubic-bezier( 0.47, 0, 0.745, 0.715 );
$ease-out-sine: cubic-bezier( 0.39, 0.575, 0.565, 1 );
$ease-in-out-sine: cubic-bezier( 0.445, 0.05, 0.55, 0.95 );

$ease-in-quad: cubic-bezier( 0.55, 0.085, 0.68, 0.53 );
$ease-out-quad: cubic-bezier( 0.25, 0.46, 0.45, 0.94 );
$ease-in-out-quad: cubic-bezier( 0.455, 0.03, 0.515, 0.955 );

$ease-in-cubic: cubic-bezier( 0.55, 0.055, 0.675, 0.19 );
$ease-out-cubic: cubic-bezier( 0.215, 0.61, 0.355, 1 );
$ease-in-out-cubic: cubic-bezier( 0.645, 0.045, 0.355, 1 );

$ease-in-quart: cubic-bezier( 0.895, 0.03, 0.685, 0.22 );
$ease-out-quart: cubic-bezier( 0.165, 0.84, 0.44, 1 );
$ease-in-out-quart: cubic-bezier( 0.77, 0, 0.175, 1 );

$ease-in-quint: cubic-bezier( 0.755, 0.05, 0.855, 0.06 );
$ease-out-quint: cubic-bezier( 0.23, 1, 0.32, 1 );
$ease-in-out-quint: cubic-bezier( 0.86, 0, 0.07, 1 );

$ease-in-expo: cubic-bezier( 0.95, 0.05, 0.795, 0.035 );
$ease-out-expo: cubic-bezier( 0.19, 1, 0.22, 1 );
$ease-in-out-expo: cubic-bezier( 1, 0, 0, 1 );

$ease-in-circ: cubic-bezier( 0.6, 0.04, 0.98, 0.335 );
$ease-out-circ: cubic-bezier( 0.075, 0.82, 0.165, 1 );
$ease-in-out-circ: cubic-bezier( 0.785, 0.135, 0.15, 0.86 );

$ease-in-back: cubic-bezier( 0.6, -0.28, 0.735, 0.045 );
$ease-out-back: cubic-bezier( 0.175, 0.885, 0.32, 1.275 );
$ease-in-out-back: cubic-bezier( 0.68, -0.55, 0.265, 1.55 );

Based on easing functions from http://easings.net/