Ok, basically add Matthisa and DrPizza to the "it's ambiguous and could be 2" group. I'm still not buying it.
Lol, I might be on shaky ground going up against anyone with "Math" right in his user name, and I would readily concede that the esteemed Doctor is, in general, 1000 times the mathelete that I am or ever was, but, HEY DOC! RESPOND TO THESE:
More pithily:
<-------------- Runs and hides. Though he did quite well in math on his SAT's, has never had a math class above HS calculus, which I somehow got a A in even while still employing my standard HS method of not doing homework and just cramming before each exam. Calc was BY FAR the hardest HS subject to do this for. I'm still amazed my approach worked. It almost literally hurt my head, and I promptly forgot EVERYTHING!
As for Matthisa, I have seen you try to overgeneralize from ONE failed calculator (TI85), even after TI's own bulletin explaining their FAILURE was posted, plus many references to the rarified math circles in which you circulate.
Ok, how 'bout posting links with quotes from recognized and credentialed math mavens on this crucial, crucial subject.