Quadratic and cubic terms were included to test for the presence of turning points in the relationship.
Because they use a numerical algorithm to optimize the cubic polynomial joint interpolator, it is not a real-time algorithm.
An example of a locally weighted regression smoother is a cubic smoothing spline.
In fact, we are easily able to reject a fourth-order polynomial against the cubic (likelihood ratio test 2 3.712).
A significant linear trend was found, whereas quadratic and cubic trends, which would have indicated slowed or arrested development, were not significant.
Second, the rectal volume expressed in cubic centimetres was recorded.
They believe that the set of cubic spirals has several advantages when used in smoothpath planning, one of which is curvature continuity.
The trajectories of the body and its feet are modeled by piecewise cubic polynomials.
