lines - rows and columns used for display
lines handles Scilab display paging.
lines() returns the vector [# columns, # rows] currently used by Scilab for displaying the results.
lines(nl) sets the number of displayed lines (before user is asked for more) to nl .
lines(0) disables vertical paging
lines(nl,nc) changes also the size of the output to nc columns.
When Scilab is launched without -nw option, the lines parameters are automatically set according to the output window size, these parameters are also automaticaly modified when the window is resized.