# Definition:Square of Vector Quantity

(Redirected from Definition:Self-Product)

## Definition

Let $\mathbf u$ be a vector.

Let $\mathbf u \cdot \mathbf u$ denote the dot product of $\mathbf u$ with itself.

Then $\mathbf u \cdot \mathbf u$ can be referred to as the square of $\mathbf u$ and can be denoted $\mathbf u^2$.

## Also known as

The square of $\mathbf u$ is also seen referred to as the self-product of $\mathbf u$.