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| All, As the original ranter, let me now try to describe this bug with as little ranting as possible. Here is the entire issue in one line of code: Quantity[200, "Kilograms"] * 0 == D[Quantity[200, "Kilograms"], t] I think both... |
| Daniel, Yes, I agree completely that the derivative of "zero anything" is "zero." So, yes, the units should disappear from the y-component of the rVec when differentiated into vVec and aVec. That does indeed seem to be the calculus I was... |