Stephan Stiller wrote
> "braces" in English means just { }. Aside from the context of programming
> languages, braces are rare in English and German outside of math,
> to the point they'll look esoteric; in ordinary math you see them only for
> sets. Anecdotally people in Germany always tell me of a mythical
> parenthesis-bracket-brace hierarchy { [ ( ) ] }, which I've never actually
> encountered, and btw even the hierarchy [ ( ) ] isn't used by everyone.
The { [ ( ) ] } hierarchy is used in chemical nomenclature. It is specified by
IUPAC (International Union of Pure and Applied Chemistry).
For example:
acetone (R)-O-{2-[4-(α,α,α-trifluoro-p-tolyloxy)phenoxy]propionyl}oxime
Alan Wood
http://www.alanwood.net/ (Unicode, special characters, pesticide names)
