Problem:
Graph the curve represented by the following pair of parametric equations:

x = 2 cos3(t), y = 2 sin3(t)

This curve is called a hypocycloid of four cusps.

Visualization:
Using Derive:

  1. Prepare the program for graphics.
  2. If the first menu item is Algebra then press .
  3. Press for Author.
  4. Enter the function
    [2(cos t)^3,2(sin t)^3]
  5. Press twice and then to get the graph.