# Thread: 2D and 3D Vectors: How do they work?

1. ## 2D and 3D Vectors: How do they work?

Hey everyone, I am new to this website and I'm glad to be a part of this awesome mathematics community!

I have heard of vectors, but my Calculus class never touched base on them. All I know about vectors is that they have a direction and a magnitude, and cosine has something to do with them. But that's about it. So... how do they work? And what kind of applications use 2D and/or 3D vectors?

Thanks!

2. Originally Posted by XRaptor
Hey everyone, I am new to this website and I'm glad to be a part of this awesome mathematics community!

I have heard of vectors, but my Calculus class never touched base on them. All I know about vectors is that they have a direction and a magnitude, and cosine has something to do with them. But that's about it. So... how do they work? And what kind of applications use 2D and/or 3D vectors?

Thanks!
Are Google and Wikipedia not working?

3. I'll do some searching first, sorry for asking here.

4. ## Vectors

Hello XRaptor

If you want to see what displacement or position vectors are, and an example of how vectors work in geometry, look at the posting I made a few days ago here. (Read the whole page to get the full story.)