1. quadratic - Noun
2. quadratic - Adjective
Of or pertaining to a square, or to squares; resembling a quadrate, or square; square.
Tetragonal.
Pertaining to terms of the second degree; as, a quadratic equation, in which the highest power of the unknown quantity is a square.
Source: Webster's dictionaryNot a lot of people know this, but I'm very good at mathematics. When I was an angry teenager, I used to sit in my room and do quadratic equations to calm myself down. Samantha Bond
One of the first algebraists to accept negative numbers was... placed negative numbers on a par with positive numbers and gave both roots of a quadratic equation, even when both were negative. Both Girard and Harriot used the minus sign for the operation of subtraction and for negative numbers. Morris Kline
quadratic equation Source: Internet
Although there are several more intrinsic constructions, the spin representations are not functorial in the quadratic form, so they cannot be built up naturally within the tensor algebra. Source: Internet
All quadratic equations will have two solutions in the complex number system, but need not have any in the real number system. Source: Internet
An integer a is a quadratic residue modulo p if it is congruent to a perfect square modulo p and is a quadratic nonresidue modulo p otherwise. Source: Internet