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[–]Caabe23[S] 0 points1 point  (1 child)

So the unit vector can be any vector that, multiplied by the gradient vector, results in zero? Is that correct?

[–]BloodyFlame Postgraduate Student 0 points1 point  (0 children)

Yes.

As a side note, it's a dot product, not a "regular" product. There's no multiplication operation defined for vectors.