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Cross Product
These are two vectors :
They can be multiplied using the "Cross Product"
(also see Dot Product )
The Cross Product a × b of two vectors is another vector that is at right angles
to both:
And it all happens in 3 dimensions!
Calculating
WE CAN CALCULATE THE CROSS PRODUCT THIS WAY:
a × b = |a| |b| sin(θ) n
|a| is the magnitude (length) of vector a
|b| is the magnitude (length) of vector b
θ is the angle between a and b
n is the unit vector at right angles to both a and b
So the length is: the length of a times the length of b times the sine of the
angle between a and b,
Then we multiply by the vector n to make sure it heads in the
right direction (at right angles to both a and b)
...
Dot Product
The Cross Product gives a vector answer, and is sometimes called the vector
product
...