Точнее, не "teck", а "tech". Процитирую Кнута: "Insiders pronounce the
$\chi$ of \TeX\ as a Greek chi, not as an `x', so that \TeX\ rhymes
with the word blecchhh. It's the `ch' sound in Scottish words like
{\sl loch\/} or German words like {\sl ach\/}; it's a Spanish `j' and
a Russian `kh'. When you say it correctly to your computer, the
terminal may become slightly moist."
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JID: dottedmag@jabber.dottedmag.net