SUBDUCTION
, in Arithmetic, the same as Subtraction.
SUBDUPLE Ratio, is when any number or quantitity is the half of another, or contained twice in it. Thus, 3 is said to be subduple of 6, as 3 is the half of 6, or is twice contained in it.
SUBDUPLICATE Ratio, of any two quantities, is the ratio of their square roots, being the opposite to duplicate ratio, which is the ratio of the squares. Thus, of the quantities, a and b, the subduplicate ratio is that of √a to √b or a1/2 to b1/2, as the duplicate ratio is that of a2 to b2.
SUBLIME Geometry, the higher geometry, or that of curve lines. See Geometry.
