Question

what does ||u|| ||v|| mean?

Answer 1

Magnitude.

Answer 2

say that u=(3,2) and v=(4-2) what would ||<3,2>|| ||<4,-2>|| be?

Answer 3

i thought magnitude has only 1 abs symbol around the variable or number... i see two :/

Answer 4

it is a norm

Answer 5

so it's (3*4)+(4*2)?

Answer 6

i agree with sasogeek

Answer 7

http://en.wikipedia.org/wiki/Dot_product

Answer 8

typically...\[\|<a,b>\|=\sqrt{a^2+b^2}\]

Answer 9

thanks estudier, its my first noticing that. :)

Answer 10

I knew u were asking about angle/dotproduct...

Answer 11

yeah, i am

Answer 12

so what would be the result, i'm still confused

Answer 13

\[2\sqrt{65}\]

Answer 14

U get it or not?

Answer 15

nope, i've had way too much school work to do today and now my head hurts, lol

Answer 16

It's just Pythagorus in disguise.

Answer 17

good man

Answer 18

|dw:1314815856492:dw

Wrong way around but u get the idea.

Answer 19

Messed up my drawing...

Answer 20

not sure what it is