Why Was 5 x 3 = 5 + 5 + 5 Marked Wrong
Brett Berry
4.6K753

For example, when we teach dot product of vectors A.B, we teach them that it is B.A — again the order has no meaning. On the other hand, with a cross product, we cannot do that AxB is not the same as BxA. That distinction is absolutely essential in understanding the concept here. In sclar multiplication and dot products, equal and equivalence are the same. Medicine dosage is a time dependent function, we can only equate here for the total dose rather than incremental dose.

One clap, two clap, three clap, forty?

By clapping more or less, you can signal to us which stories really stand out.