Glossary math Term Page
Dot Product
A product that measures vector alignment
Core Idea
The dot product multiplies corresponding vector components and adds the results. It is a compact way to measure how strongly two vectors align and it underlies ideas such as angle, orthogonality, projection, and cosine similarity.
Role In This Blog
In Mathbong, the dot product is the hinge concept that connects vector arithmetic to geometry, orthogonality, projection, and least squares.