Name: PLOT    3
The command  PLOT makes a quickplot of two or more floating-
point arrays.
The call is:  PLOT  xray1, yray1 [,xray2, yray2, ... ,
                                               xrayn, yrayn]
xray1, yray1  are floatingpoint arrays.

Example:      x = falloc (100) 
              plot x, sin (x), x, cos (x) 
Name: SCATTR  3
The  command  SCATTR  makes  a  quickplot  of  two  or  more
floatingpoint  arrays where the points  are marked with sym-
bols.
The call is:  SCATTR  xray1, yray1 [,xray2, yray2, ... ,
                                               xrayn, yrayn]
xray1, yray1  are floatingpoint arrays.
Name: PLOT3   3
The command PLOT3 makes a 3-D colour plot.
The call is:  PLOT3 xray, yray, zray
xray, yray,   are floatingpoint  arrays  containing  X-,  Y- 
       zray   and Z-coordinates.
Name: PLOT3R  3
The command  PLOT3R  makes a 3-D colour plot  where the data
are specified as rectangles.
The call is:  PLOT3R x1ray,  y1ray, x2ray,  y2ray,  zray
x1ray, y1ray  are floatingpoint arrays  containing X- and Y-
              coordinates of rectangle corners.
x2ray, y2ray  are floatingpoint arrays  containing the oppo-
              site rectangle corners.
zray          is a floatingpoint array containing  Z-coordi-
              nates.
Name: SURF3   3
The command  SURF3  makes a 3-D colour plot of a matrix. The
columns of the matrix will be plotted as rows. 
The call is:  SURF3  zmat [,xray [, yray]]
zmat          is a two-dimensional  floatingpoint array with
              m rows and n columns.
xray          is a floatingpoint array with the dimension m.
              It will be used to position  the rows of zmat.
              If  xray is missing, an array with the  values
              { 0.5, 1.5, ..., m - 0.5} will be used.
yray          is a floatingpoint array with the dimension n.
              It will  be  used  to position  the columns of
              zmat.  If yray  is missing,  an array with the
              values { 0.5, 1.5, ..., n - 0.5} will be used.
