unplot

Removes the most recently drawn object(s).

Often I add an object to a plot and see that I goofed up in some way. This is a very quick way to undo such mistakes.From the help:UNPLOT Delete the most recently created graphics object(s). UNPLOT removes the most recently created line, surface, patch, or text object created in the current axes. UNPLOT(N) removes the N most recent. UNPLOT SET takes a snapshot of the objects currently in the axes. UNPLOT REVERT removes any objects drawn since the last SET.