The ** Triangular Computing Scheme Window** is used to show
the triangular computing scheme of de Casteljau's and de Boor's
algorithms. This window has three buttons.
Button

The following figures show the final stage of the computation of de Casteljau's algorithm for a Bézier curve of degree 5. Note that all control points of a Bézier curve are listed on the first column, while the point on the curve is shown on the right-most column. Note also that for a B-spline or NURBS curve, not all control points are involved in the computation.

See **Tracing the Curve - de Casteljau's and
de Boor's Algorithms** for the details.