square-shaped / (mathematics) of a polynomial, involving the second power (square) of a variable but no higher powers, as ax²+bx+c. / (mathematics) of an equation, of the form ax²+bx+c=0.

(mathematics) A quadratic polynomial, function or equation.

(number theory) The mathematical theorem which states that, for given odd prime numbers p and q, the question of whether p is a square modulo q is equivalent to the question of whether q is a square modulo p.

(mathematics) A number (real or complex) which is a solution to an equation of the form x²+Bx+C=0 for some integers B and C. For example 42, or 2+3i, or 1+√/2.

(mathematics) A type of average, calculated as the square root of the mean of the squares, ie. Q=√x_1²+x_2²+...+x_n²/n.

(mathematics) a polynomial equation of the second degree.

(mathematics) The formula x=(-b±√)/(2a) for finding roots of the quadratic equation.

(mathematics) Any function whose value is the solution of a quadratic polynomial

plural of quadratic formula

plural of quadratic mean