A binary form which has a square factor has its discriminant equal to zero.
If f =ay, 4 = b' be any two binary forms, we generalize by forming the function (m-k)!
BINARY SYSTEM, in astronomy, a system composed of two stars revolving around each other under the influence of their mutual attraction.
Thus, the affinity of hydrogen and oxygen for each other is extremely powerful, much heat being developed by the combination of these two elements; when binary compounds of oxygen are decomposed by the electric current, the oxygen invariably appears at the positive pole, being negative to all other elements, but the hydrogen of hydrogen compounds is always disengaged at the negative pole.
So the theory of the forms appertaining to a binary form of unrestricted order was first worked out by Cayley and P. A.