Plotting units

Sub-windows have different plotting unit ranges than the full page. Thus, when a sub-window has been selected, it is possible that not all subsequent graphics will be contained within this window. However, commensurateness is always preserved within a sub-window. For example, circles, which appear as circles when drawn into the full page, will still be circular when drawn into any sub-window.

  What are windows?
  Defining a new window