The Cross Product
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Uploader Comments (patrickJMT)
Top Comments
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patrickJMT + kahnacademy = my life saved
6 months ago 21
All Comments (232)
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I mean...Dude thank you so much... ha
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Dude that you
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a x b = c
b x a = -c
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Never mind, after checking the maths I've found out that it does matter which order you cross the vectors. Thanks for the great tutorial. =D
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Just curious, if you do vector b and you cross it with vector a in that order do you get the opposite of the example you got in the video? The only reason I ask this is I was doing a tutorial for one of my lectures and in that lecture we had to make a cube in 3d space. While doing this I entered my Vectors in an anti-clockwise format which put the normal on the wrong side of the face. Entering them in a clockwise format fixed this, so is it because of the way the vectors were crossed or not?
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thank ya broseph brosephsons
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Hello Patrick!
I am an avid fan of your very down to earth vids. But do you have videos regarding vectors in three dimensions? like regarding parametric/symmetric equations, quadric surfaces...etc.
Thanks!
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nice vid, way better than my physics prof
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do you have a video where you are given i and j and are asked to find the vector product
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You've inspired me to make my own math videos. But how do you position the camera to get a shoot that focuses solely on the paper?
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do you have a video on vector triple products?
ilovetayer 4 months ago
@ilovetayer nope, sorry!
patrickJMT 4 months ago
hey PatrickJMT.. thanks for getting me through college calculus.
brad5191 4 months ago 11
@brad5191 glad i could help you : )
patrickJMT 4 months ago
How to cross product of two vectors which are 2D.
loik345 5 months ago
@loik345 you dont. the cross product is defined for vectors in 3d
patrickJMT 5 months ago 11