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dot products

Name: Anonymous 2008-08-29 3:08

When coding for a dot product, I can get away with just doing vectorA.x * vectorB.x + vectorA.y * vectorB.y, without bringing a cosine into the mix, can't I? I'm trying to write up the collision-method outlined in "Getting to the Point," here:

http://www.gamasutra.com/features/20000210/lander_03.htm

I like this method, because it could potentially mean that I don't have to deal with rotation at all, anymore. Any help with this little hurdle is very much appreciated.

Name: Anonymous 2008-08-29 3:21

gb2/math/

Name: Anonymous 2008-08-29 8:30

Clearly a troll.

Name: Anonymous 2008-08-29 8:48

>>1
Yes.1
                               
References: http://mathworld.wolfram.com/DotProduct.html, form 7.

Name: Anonymous 2008-08-29 11:01

.

Name: Anonymous 2009-08-16 17:17

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Name: Anonymous 2013-09-01 20:21



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