Again, is the term "DC Sine Wave" problematic because it is
fundametnally wrong OR is it problematic because it is at odds with
conventional terminology and nomenclature.....if it is fundamentally
wrong, then please show how.....however, if we're just talking about
convention, then why break balls? (Wait, I'm sorry, I don't mean
literally "breaking balls", that's just nomenclature).....if you were
given a piece of paper a week ago with just the words "A Fully DC Sine
Wave" on it and you were asked to come up with as many possible things
it could realistically mean, how many things could you come up with?
If you were being truthful I think you could only think of one thing
(and think of it very quickly).

If you think that the term "fully DC Sine Wave" even means anything,
then you have not understood the coursework.