2 DISPLAY
  Syntax: DISPLAY [&idb]

  Displays the fit  results on the current  graphics device. In all that
  follows  `id' are the  primary  identifier(s)  of the  plot(s) you are
  fitting. You can change what is displayed using the `SET DISPLAY MODE'
  command (options include showing the fit, background subtracted fit or
  both).

  If you  are fitting a   1-dimensional plot,  the part of  the function
  which is  included in  the fit is  stored in  plot  `id&981', and that
  which is excluded is stored in `id&982'.

  Parameters  that are fixed  are prefixed  by a `*' and  those that are
  constrained are prefixed by a `#'.

  If  you are  using  display  mode -2,  2, -3  or 3  you must  give the
  secondary  identifiers of  the background  subtracted  plots. You must
  also have  given the `SET  BACKGROUND'  command  beforehand to specify
  which function(s) are the background.

  If you are fitting a 2-D plot, the part of the function which which
  is included in the fit is stored in plot `id&981', while `id&982'
  contains the signed chi**2 contribution of each point. A positive
  value means that the data was higher then the function for that
  point.  Positive values are displayed as filled squares, while
  negative values are displayed as open squares (unless you change the
  symbol). Plot `id&982' is the one that is drawn in the display for
  2-D plots, so if, for example, you want to change the limits, you
  must use the syntax `SET PLOT id&982 X LIMIT' etc.

