def easeOut(t, b, c, d, aa, bb):
t /= d
t -= 1
return c * Math.sqrt(1 - t*t) + b
def easeInOut(t, b, c, d, aa, bb):
t /= d/2
if t < 1:
return -c/2 * (Math.sqrt(1 - t*t) - 1) + b
t -= 2
return c/2 * (Math.sqrt(1 - t*t) + 1) + b
def easeIn(t, b, c, d, aa, bb):
t /= d
return -c * (Math.sqrt(1 - t*t) - 1) + b