# Quadratic forms

### From Conservapedia

- It has been proposed that this page,
**Quadratic forms**, be titled, "**quadratic form**".

**Quadratic forms** are functions expressed as multivariable equations in linear algebra that have only combined power of 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**

where * y* =

*A*

*is the vector resulting from multiplying a matrix and a vector (a linear transformation) and*

**x***(*

**x***) is the scalar product of vectors.*

**y**