unit vector

unit vector (plural unit vectors)

1. (linear algebra, mathematical analysis) A vector with the length of 1, defined as ${\displaystyle \mathbf {\hat {u}} ={\frac {\mathbf {u} }{\|\mathbf {u} \|}}}$.

• vector

• direction vector

• direction cosine

• unit sphere
• ◌̂

• unit vector on Wikipedia.Wikipedia