Years ago I read an article in one of these right-wing rags, like The Wall Street Journal, the gist of which was that some nuclear power plant wanted forty seven hundred-foot long rods but got forty seven hundred foot-long rods. It was an expensive error. And then there's "Mathematica" where an unintentional space is treated as a multiplication and a , instead of a ; yields chaos instead of suppressing the display. Nonetheless (which is not spelled "none the less")Mathematica is a great tool.