Vectors and matrices
Dot product
A scalar product that combines corresponding vector components and also equals the product of magnitudes times the cosine of their angle.
Common notation a·b=Σaᵢbᵢ
In one sentence
What does Dot product mean?
A scalar product that combines corresponding vector components and also equals the product of magnitudes times the cosine of their angle.
How it is written
a·b=Σaᵢbᵢ
A compact example
For vectors (1,2) and (3,4), the dot product is 1×3+2×4=11.
Other names and search terms
scalar product.
Clear answers
Questions about Dot product
What does Dot product mean in mathematics?
A scalar product that combines corresponding vector components and also equals the product of magnitudes times the cosine of their angle.
How is Dot product written?
A common notation is a·b=Σaᵢbᵢ.
What is an example of Dot product?
For vectors (1,2) and (3,4), the dot product is 1×3+2×4=11.