These will be made available through the Web in the near future. If a menu or submenu item is selected, the help will give information on that item. Otherwise, it will give general help information. Select the menu bar at top by using the cursor keys, the highlighted letter, or by clicking on the entry using the mouse. Key in your value.
Indents indicate menu level.
This option lets you bring up a screen on which you can set most of the parameters of the program at the same time. This option lets you turn on a variety of forces including external fields, friction with the walls, and hard sphere interactions between the particles. This option lets you turn on a uniform gravitational field pointing downward. All the particles have the same mass. This option lets you turn on a uniform electric field pointing to the right.