Hypertext Help with LaTeX
The \cline command draws horizontal lines across the columns specified, beginning in column i and ending in column j, which are identified in the mandatory argument.
Two (or more) successive \cline commands draw lines in the same vertical position. Typically, \cline commands are placed after a \\ (line breadk) command so that they separate items on two lines; they do not, however, need a line break command afterwards.
Revised 10 Oct 1995.