Apache OpenOffice (AOO) Bugzilla – Issue 38941
Contraction
Last modified: 2013-02-07 22:40:38 UTC
In field theory there's a notation for some symbols combination called contraction. It's a line on top of the symbols (let's say, %phi and %psi) that starts from the middle of one of the symbols, goes up a little, then it's like an "overline" (opposing to underline) that goes to the other symbol, then goes down a little (like a ] but on top and the tips starts in the middle of the signs). These contractions can start from anywhere in the line and go to anywhere (I mean, it can have other symbols in between). If it's not clear I can make you a drawing. :D
reassigned to BH. Another extension of the symbol library could be nice.
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