A unit vector is any vector that is one unit in length. Unit vectors are often notated the same way as normal vectors, but with a mark called a circumflex over the letter (e.g. is the unit vector of .)
Standard basis vectors[change | change source]
Three common unit vectors are , and , referring to the three-dimensional unit vectors for the x-, y- and z-axes, respectively. These vectors are called the standard basis vectors of a 3-dimensional Cartesian coordinate system. They are commonly just notated as i, j and k.
They can be written as follows:
Related pages[change | change source]
References[change | change source]
- "Comprehensive List of Algebra Symbols". Math Vault. 2020-03-25. Retrieved 2020-08-19.
- "Unit Vector". www.mathsisfun.com. Retrieved 2020-08-19.
- Weisstein, Eric W. "Unit Vector". mathworld.wolfram.com. Retrieved 2020-08-19.
- "Unit Vectors | Brilliant Math & Science Wiki". brilliant.org. Retrieved 2020-08-19.