You may create some pictures like the following. Have a try by adjusting the parameters. [br][br]There are 3 sliders on the left, showing the values of [color=#ff0000]n, d and t[/color]. Use the sliders to change the values or simply click to enter a particular value. How does each of them change the pattern? [br]There are 3 movable control points [color=#ff0000]A, B and Z[/color]. Point Z is hidden but can be revealed by clicking the check box. Use these control points to further vary the pattern. [br][br]Have fun making the following patterns or creating your own.