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The spelling is 'coArse'

So here I was, sitting at a class in MIT and the instructor puts up a slide and there is a legend that says 'course coding'. It is clear from the concept that the meaning is 'coarse coding', with 'coarse' being the opposite of fine. I keep my big mouth shut, because we are here for the science, and I don't want to side track people pointing out pipifax things like typos on a slide. A few slides later we come across coarse coding, and it is again spelled 'course'. I keep quiet. Again, and again repeatedly on different slides. Now I know its not a typo. The instructor thinks that's the right spelling. I keep quiet.

Some days later I come across the misspelling on some website. Then again on slashdot, and now I have to open my big mouth to relieve the pressure.

Its 'coarse'. 'COARSE'. Meaning...well, not fine. 'course' means a path, like a race course, or the course of a river.
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