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rdgn
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Why is the dot product equivalent to the matrix multiplication of its components?
I've seen some proofs using Pythagorean and cosine law but they don't give you an intuitive feel as to why matrix multiplication works.
The geometric definition (##ab cosθ##) is very easy to understand. To a certain extent, I can understand why matrix multiplication works when either vector ##a## or ##b## is parallel to the x or y-axis since the product would ultimately simplify to the geometric definition, but I don't understand why it works for any arbitrary vector.
Can anyone give an intuition of why this works? (not proof/s, since I've already seen some)
I've seen some proofs using Pythagorean and cosine law but they don't give you an intuitive feel as to why matrix multiplication works.
The geometric definition (##ab cosθ##) is very easy to understand. To a certain extent, I can understand why matrix multiplication works when either vector ##a## or ##b## is parallel to the x or y-axis since the product would ultimately simplify to the geometric definition, but I don't understand why it works for any arbitrary vector.
Can anyone give an intuition of why this works? (not proof/s, since I've already seen some)
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