15.3  LIST_OF_COMMANDS 

                       3-d plot info.  is in parentheses ()
     1.  ADD - Adds together 2 data sets
     2.  ARROW - Draws an arrow.
     3.  BARGRAPH - Produces a bar graph.
     4.  BIN - This transforms the data to a frequency distribution
         (histogram).  This may also be used to add data sets together.
     5.  BOX - Draws a box.
     6.  CIRCLE - Draws a circle or ELLIPSE.
     7.  CLEAR - Clears the screen the next plot will use same parameters
         (WARNING:  usually you want command NEW)
     8.  CONTOUR - Draws a contour plot of MESH data.
     9.  CONVOLUTE - Calculates the convolution of 2 data sets.
    10.  CREATE MESH - Creates mesh data.
    11.  DATA SET - Starts a new data set.
    12.  DELETE - Deletes data points.
    13.  DEFINE COMMAND/KEY - Defines commands or keys on your keypad.
    14.  DEFINE HISTOGRAM - Defines histograms (HBOOK )
    15.  DIAMOND - Draws a diamond.
    16.  DIVIDE - Divides 2 data sets (histograms)
    17.  NDU/NDV/NDW/NDX/NDY/NDZ - Enters a sequence of NDU,NDY...  or NDZ
         data values.  These are the negative errors on U,...  or Z.
    18.  DU/DV/DW/DX/DY/DZ - Enters a sequence of DX,DY, or DZ data
         values.  These are the errors on U...  or Z.
    19.  ELLIPSE - Draws a circle or ELLIPSE.
    20.  ENDREPEAT - Ends a repeat loop.
    21.  ENDFILE - Ends a file.
    22.  FFT - Calculates a "fast" fourier transform of a data set.
    23.  FIT - Fits functions to the data and/or generates a curve.
    24.  FLUSH - Flush out all remaining data.
    25.  HISTOGRAM - Draws a histogram or ("Block") plot.
    26.  HELP - Get help on TOPDRAWER.
    27.  IF/ELSE/ENDIF - Tests status
    28.  JOIN - Joins the data points with a line or (Mesh) plot.
    29.  LIST - List the current data points.
    30.  LIST HISTOGRAM - List histograms (HBOOK )
    31.  MERGE - Merges the contents of data sets.
    32.  MULTIPLY - Multiplies 2 data sets (histograms)
    33.  NEW FRAME - Starts a completely new plot.
    34.  NDX/NDY/NDZ - Enters a set of NDX...  data values.  These are
         negative error values.
    35.  PAUSE - The program pauses.
    36.  PLOT - Plots data as points or symbols (Scatter plot).
          *  OUTLINE - Plots an outline around the plot.
          *  AXES - Plots axes (Ticks and labels).
          *  TABLE - Plots a table (list of numbers).
    37.  READ - Reads in data points.
    38.  REPEAT - Repeats a series of commands.

    39.  RESTORE - Restores things 
         A.  DATA - Restores data sets from a file.
         B.  HISTOGRAM - Restores a set of histograms (HBOOK )
         C.  FIT - Restores a fit.
    40.  SAVE - Saves things See:RESTORE
    41.  SHOW - Shows current options as set by the SET command.
    42.  SMOOTH - The data is smoothed.
    43.  SORT - Sorts the contents of a data set.
    44.  SPAWN - Spawns out of TOPDRAWER.
    45.  SPLINE - Produce a spline fit to the data.
    46.  STOP - Stops TOPDRAWER.
    47.  SUBTRACT - Subtracts 2 data sets.
    48.  SWAP - Swaps data for 2 axes.
    49.  SYMBOL - Enters symbols for existing data.
    50.  TITLE - Puts a title on the plot.
    51.  TRANSFORM - Transform data from one coordinate frame to another
         (CARTESIAN,POLAR,SPHERICAL)
    52.  TYPE - Types a line on your terminal.
    53.  CASE - Controls the format of the title.
    54.  MORE - Adds more text under the current title.
    55.  SET - Sets options for plots (defaults).
    56.  U/V/W/X/Y/Z - Enters a sequence of U,V,....  or Z values.  U,V,W
         are auxiliary coordinates while X,Y,Z are the coordinates used in
         plotting.