# Search Results for “spline”

##### Not a spline

Where do you put the control points of a cubic spline in order for the spline to be a piece of a parabola? Explore here. Prove using Geometry Expressions (or by hand).##### Cubic Spline

Many computer drawing programs use cubic splines to represent arcs. Our diagram shows how a spline can be constructed from 4 control points. We highlight that it is a moving average of two parabolas. These parabolas are exactly the string art parabolas.##### Spline Approximation

Spline approximation to a quarter unit circle. Can you find the best value for parameter**a**?