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  1. J

    Shouldn't a 3D vector be 6 numbers instead of 3?

    Try this: To understand why a 3D vector has 3 numbers, consider why a 1-dimensional vector only has one number. Examine the statement: "7 + -5 = 2". I could also just as well say "8 + -6 = 2" or "3.45 + -1.45 = 2". This is because we are equating any 1-dimensional line segment from any point on...
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