... >> Mathematics >> Mathematical Analysis >> Quadratic Form
Highest Rated Sign
Nobody has posted a sign yet.
Definition: A real-valued function Q defined on R^n by an equation of the type Q(x) = sum_(i=1 to n) sum_(j=1 to n) [(a_ij)(x_i)(x_j)], where x=(x_1,...,x_n) and the a_ij are real is called a quadratic form.
Source: Mathematical Analysis, second edition by Tom M. Apostol