Continuity for Bezier Curves
Experiment with how to join the two Bezier curves given by control points C and control points D. Checking the boxes for the different types of continuity will show the conditions on the control points that must be met to satisfy the continuity. Click on the arrow buttons to move the D control points to satisfy those conditions.
Click "Show Point" to see a point on the Bezier curves. You can move the point along the curve using the slider, or click on "Animate" for an animation of the moving point.
Show/Hide the control polygon, axes, grid using the other check boxes.