# 5.4: Dot Products

Difficulty Level: At Grade Created by: CK-12
Estimated10 minsto complete
%
Progress
Practice Dot Products

MEMORY METER
This indicates how strong in your memory this concept is
Progress
Estimated10 minsto complete
%
Estimated10 minsto complete
%
MEMORY METER
This indicates how strong in your memory this concept is

### Notes/Highlights Having trouble? Report an issue.

Color Highlighted Text Notes

### Vocabulary Language: English

TermDefinition
dot product The dot product is also known as inner product or scalar product. The two forms of the dot product are $\vec{a} \cdot \vec{b} = \Big \| \vec{a}\Big \| \ \Big \| \vec{b}\Big \| \cos \theta$ and $\vec{a} \cdot \vec{b} = x_a x_b + y_a y_b$.
scalar product A scalar product is the same as a dot product. The scalar product produces a number that can be interpreted to tell how much one vector goes in the direction of the other vector.
scalar projection The scalar projection of a vector onto another vector is equal to the length of the projection of the first vector onto the second vector.

Show Hide Details
Description
Difficulty Level:
Tags:
Subjects: