PLOT, NSTRT, NEND, NINC
Forms a display.
NSTRT, NEND, NINCDisplay plots sequentially from number NSTRT to NEND in
steps of NINC. NSTRT defaults
to the next plot.  NEND defaults to NSTRT.
 NINC defaults to 1.  If NSTRT =
ALL, display all plots from the beginning of the file.  If NEND =
ALL, display to the end of the file.
Output will be to the terminal or to a file, depending on the driver
[/SHOWDISP].  The INTERLEAF and DUMP drivers produce an
output file for each plot named INTLnn and
DUMPnn, with nn sequentially
ranging from 00 to 99.  A blank line after the PLOT command
causes the next plot to be formed.