Poly -Bézier curves

We can create poly-Bézier curves by connecting several individual curves. Test the connection after each redefinition by dragging all control points. I. Connect only the endpoint D of the first curve to the first point E of the second curve:
  1. In the input box enter:
  2. Test the connection.
II. Redefine the second control point F of the second curve so that the two Bezier curves have the same tangent line at their common point:
  1. Enter in the input box.
  2. Redefine F by entering
  3. Test the connection.
III. Make the two distances from the common point to the respective control point equal:
  1. Enter in the input bar:
  2. Redefine F by entering
  3. Test the connection.