- #1
Pochen Liu
- 52
- 2
I know that a dot product of 2, 2 dimension vectors a, b =
(ax * bx) + (ay * by)
but it also is equal to
a*bCos(θ)
because of "projections". That we are multiplying a vector by the 'scalar' property of the other vector which confuses me because that projection is in the direction of the other vector, therefore no scalar, so I cannot see how these two produce the same outcome.
What am I missing intuitively?
(ax * bx) + (ay * by)
but it also is equal to
a*bCos(θ)
because of "projections". That we are multiplying a vector by the 'scalar' property of the other vector which confuses me because that projection is in the direction of the other vector, therefore no scalar, so I cannot see how these two produce the same outcome.
What am I missing intuitively?
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