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@$3.1415rin · *Last edited by @$3.1415rin; 10-05-2004 at 22:31..*

this may help you :

if you have two vectors, the dotproduct of the normalized vectors ( length is 1 ) of both ( dotproduct is sum over the products of the components x(i)y(i) ) is the cosine of the angle

the cool thing about it is that this simple stuff is working in n-dimensional vector spaces

( at least on kanonical bases )

€ : argh, what did I write
€^2: LA sucks btw ... at least the nontrivial stuff ... but somewhen you'll call everything trivial, so there is still hope

	(#2)
@$3.1415rin Council Member, Author of JoeBOT Status: Offline Posts: 1,381 Join Date: Nov 2003 Location: Germany	Re: Finding angle at which a grenade hits a wall - 10-05-2004 this may help you : if you have two vectors, the dotproduct of the normalized vectors ( length is 1 ) of both ( dotproduct is sum over the products of the components x(i)y(i) ) is the cosine of the angle the cool thing about it is that this simple stuff is working in n-dimensional vector spaces ( at least on kanonical bases ) € : argh, what did I write €^2: LA sucks btw ... at least the nontrivial stuff ... but somewhen you'll call everything trivial, so there is still hope Last edited by @$3.1415rin; 10-05-2004 at 22:31..