3 results about "Discriminant" patented technology

In mathematics, the discriminant of the quadratic polynomial ax²+bx+c, a≠0 is b²-4ac. It is zero if and only if the polynomial has a double root, and (in the case of real coefficients) is positive if and only if the polynomial has two real roots. More generally, the discriminant of a polynomial is a polynomial function of its coefficients, which allows deducing some properties of the roots without computing them.