CLEAR SEGMENT

         CLEAR SEGMENT [SegName]

    Without argument, CLEAR SEGMENT destroys the last graphic segment of the
    current  directory,  i.e.  in  simplest case the part of the plot corre-
    sponding to the last graphic command. It can be used repetitively.

    CLEAR SEGMENT SegName makes destroys the named segment.One can  erase  a
    range  of graphic segments in a single command by typing a range of seg-
    ment numbers, as in CLEAR SEGMENT 24-16. See command GTVL\CHANGE for de-
    tails.