Quadratic form
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- It has been proposed that this page, :Quadratic form, be titled, "quadratic form".
Quadratic forms are functions expressed as multivariable equations in linear algebra that have no combined power larger than two. When represented by matrices, they have a geometric significance as a shift or transformation in coordinates.
A quadratic form q(x) can be written as:
- q(x) = x(A x)