Unit normal vector of a surface Learn how to find the vector that is perpendicular or normal to a surface. U U U Where u is the unit vector U is the original vector and U is the magnitude of the original vector. Unit vectors are often chosen to form the basis of a vector space and every vector in the space may be written as a linear combination of unit vectors.
The unit vector where the magnitude of unit vector is 1.
Zthe value of the vector in the z axis. Comparing this with the formula for the unit tangent vector if we think of the unit tangent vector as a vector valued function then the principal unit normal vector is the unit tangent vector of the unit tangent vector function. The unit vector where the magnitude of unit vector is 1. In unit vector component format.