DISCARD

##
DISCARD

            [CLEAN\]DISCARD BufferName

        Discard (i.e. remove from the memory and the list  of  known  variables)
        the specified buffer.

        Only  the most important buffers (e.g. DIRTY, CLEAN, etc...) can be dis-
        carded. The current list is:
          CCT,   CLEAN,   CONTINUUM,   DIRTY,   MASK,   PRIMARY,   RESIDUAL,
          SINGLEDISH,   SKY,   UVCONT,   UVSELF,   UV_MODEL