Set the number of points you want, and then click the stage. Now, click 'draw' to draw the curve, or drag X slowly yourself. The variable X tells the points how far along the curve they should move to. Clear clears the screen, and the 2p-5p sets whether 2nd, 3rd, 4th, and 5th order curves are drawn. Note that any number higher than the number of points is ignored, as it needs, for instance, 5 points to draw a 5th order curve! The colours of the curves match the colours of the buttons. 2nd order curves are drawn between 1&2, 2&3, 3&4, and 4&5. 3rd order curves are drawn: between 1&3, with control point 2, between 2&4, with control point 3, between 3&5, with control point 4. And so on for 4th and 5th. Have fun!
