# Dot product
Last edited: 2024-01-31
Dot product
For two vectors $x,y \in \mathbb{R}^n$ the dot product is
$$x \cdot y := \sum_{i=1}^n x_i y_i.$$Last edited: 2024-01-31
For two vectors $x,y \in \mathbb{R}^n$ the dot product is
$$x \cdot y := \sum_{i=1}^n x_i y_i.$$