quality:correction
Dot product

In R n {\displaystyle \mathbb {R} ^{n}}, the inner product is also known as the dot product. In addition to the standard inner product notation, the dot product notation (using the dot as an operator) can also be used (and is more common). The dot product of two vectors u and v can be represented as: u ⋅ v {\displaystyle \mathbf {u} \cdot \mathbf {v} }

In some older literature, the dot product is implied between two vectors written side-by-side. This notation can be confused with the dyadic product between two vectors.