Parametric Motion
This animation shows a ball moving along a parametrically defined cubic curve:
P(t) = a*t**e + b*t**2 + c*t +d
by uniformly varying the parameter (i.e. t = 0.0, 0.1, 0.2, etc.). Note that it travels further between frames at the start of the curve than at the end of the curve:
Equi-distant values in parametric space do not result in equi-distant points in Euclidean space.
