Cross product 1

Introduction to the cross product

Category:

Education

Tags:

• vector
• cross
• product

[lseateal]

wat if i dont have any fingers?

[kmiller1985]

By far the easiest version of the right hand rule I have seen.

[akipina]

MUCH easier than the right foot rule. That was just ridiculous.

[sopro671]

Thanks really helped alot

[SuperThegreat007]

@lseateal you should imagine fingers and then work with it

[xXSabzzXx]

Great video thanks.

But I've been taught to use some sort of screw rule instead of the right hand rule... Seems a bit easier. For those who dont know how to use the right hand rule this might help. imagine turning a screw/screwdriver from a to b.. You are turning it clockwise and when you do that, the screw moves forwards so the vector is in that direction. But when you move it from b to a. It is anticlockwise and the screw moves outwards. So the vector is out of the page.

[DasGewitter83]

@lseateal I guess it is not very difficult to imagine it

[KimJong7hrill]

@lseateal

lol I don't have any fingers either.

[Elzelgator]

awesome

[musicandmeareinlove]

@RJonStreetz :)

[RJonStreetz]

@musicandmeareinlove Oh yeah right...forgot about that....Thanks!

[musicandmeareinlove]

@RJonStreetz lol...wt if u're just given the coordinates...? in d form A=xi + yj + zk

and B= ai + bj + ck and asked to find the angle betn them? u cant always draw the vectors on d cartesian plane and measure the angle between em...