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http://www.openoffice.org/issues/show_bug.cgi?id=60591
User discoleo changed the following:
What |Old value |New value
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CC|'lars' |'discoleo,lars'
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------- Additional comments from [EMAIL PROTECTED] Sun Aug 12 16:11:52 +0000
2007 -------
Labeled arrows are indeed extensively used in chemistry.
I will add here some signs often used in *chemistry*:
1. Equilibrium:
(aka double half arrows for chemical equilibrium)
simple: dual arrowheads: A <----> B
complete:
k1
_____________\
Start ------------- Product
\ k2
where k1, k2 are the equilibrium constants (are omitted sometimes)
2. Reaction progression:
one of the reaction less likely / unlikely
k1
_____________\
Start -------- Product
\ k2
especially k2 is omitted
See e.g. on wikipedia: http://en.wikipedia.org/wiki/Chemical_equilibrium
(although the notations there are very basic, yet more than OOo can do)
For another image with equilibrium constants, see:
http://goldbook.iupac.org/SVG/C01480-1.png and
http://goldbook.iupac.org/SVG/F02463.png
This one uses --> arrows, but half arrows (---`) are also common
and sometimes preferred.
3. Broken arrows:
(I did NOT find them)
---X--->, ---//--->, ---/---> and the double arrow versions
Well, TEX has a wide range of useful additions that are currently lacking in
OOo.
Just to extend the arrows-issue in chemistry, I append some TEX-elements
Table 132: chemarrow Extensible Accents
\autoleftarrow{abc}{def}
\autorightarrow{abc}{def}
\autoleftrightharpoons{abc}{def}
\autorightleftharpoons{abc}{def}
These symbols are all “reverse accents” in that the two arguments serve,
respectively, as a superscript and a subscript to the arrows.
In addition to the symbols shown above, chemarrow also provides
\larrowfill,
\rarrowfill,
\leftrightharpoonsfill, and
\rightleftharpoonsfill macros.
For an extended list of TEX-symbols, see
http://www.ctan.org/tex-archive/info/symbols/comprehensive/symbols-a4.pdf.
I already added these comments to issue 80616, although that issue should
probably handle different things.
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