thanks ahmed :)

another request from teacher Fri 1/6/2012 1:48 PM

We prefer the previous design but we are wondering if the size of the graph can be made a bit bigger, in compromise of either the wave pattern or the fringe pattern. One suggestion is as shown in the document. You may make other adjustment as you deem necessary.
[color=blue][b]i set the graph to be width = 450, in full screen view, it looks great. in applet default view, it looks big.
i also made the intensity patterns from width = 100 to 75 each [/b][/color]
For your consideration, please.