A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 3 years ago
when do you use the dot product?
anonymous
 3 years ago
when do you use the dot product?

This Question is Closed

TuringTest
 3 years ago
Best ResponseYou've already chosen the best response.1the most simple answer I can give you to that very general question when you want to determine how parallel two lines are, or the angle between them

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0ok, how do you use dot product to find a vector projection?

TuringTest
 3 years ago
Best ResponseYou've already chosen the best response.1Given two vector \(\vec a\) and \(\vec b\) the projection of \(\vec b\) onto \(\vec a\) is given by\[\text{proj}_{\vec a}\vec b={\vec a\cdot\vec b\over\\vec a\^2}\vec a\]

TuringTest
 3 years ago
Best ResponseYou've already chosen the best response.1where \[\\vec a\\] is the magnitude of \(\vec a\)
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.