I have 2 questions regarding this applet. First, I notice that the values for yp and k appear at the top of the respective slider bars. However, when I download the .xml file to modify with ejs, the values do not appear. I cannot figure out how to alter the slider properties to display the corresponding values.

Secondly, I am wondering if it is possible to not have the trace be a solid line, but instead leave a point at regular time intervals (the accelerated motion would then be visibly obvious as the distance between adjacent points would change).

Thanks for any help you can give me.

Love the site! :)