RESIDUAL Figure

RESIDUAL Figure, in Geometry, the figure remaining after the subtraction of the less from the greater.

RESIDUAL Root is a root composed of two members only connected by the sign — or minus. Thus, $a\; -\; b$, or $5\; -\; 3$, is a residual root; and is so called, because its true value is no more than the residue or difference between the parts $a$ and $b$ or 5 and 3, which in this case is 2.