Category:Unit Normals

This category contains results about Unit Normals.
Definitions specific to this category can be found in Definitions/Unit Normals.

Let $S$ be a surface in ordinary $3$-space.

Let $P$ be a point of $S$.

Let $\mathbf n$ be a normal to $S$ at $P$ such that $\mathbf n$ is a unit vector.

Then $\mathbf n$ is known as a unit normal.