You encouraged further study . . . You win one internet for the best answer to a question.
Thanks. In my mind neverdems simple link to Wikipedia (see #8) was very possibly more excellent.Are you perchance a teacher?
Although both my parents taught, one as a lifetime career and the other not, and three of my grandparents were teachers, my brother and I were both engineers. Tho my brother has done volunteer tutoring for a coworker taking college courses and for a child who wasnt getting what the math book - he said there the book was so pathetic that there wasnt actually any actual math in it - should have been teaching. I confess that this isnt actually the first time someone has asked me the question, tho. and if you saw the FReepmail note I dropped to AnalogReigns about his screen name, I suppose that you would really think I was a pedant - if not pedantic.
Engineer was my second guess...