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What’s the way, if any, to typeset a diagonal arrow that points in both direction?
(like and , but having arrowheads on both sides)
Well, that isn’t in any of the standard packages on my latex symbols list, detexify can’t handle it, and I can’t even find it on a unicode arrows list. So my guess is, there isn’t one, short of escaping to a drawing package like xy, tikz, or svg.
Okay, thanks. I should have checked that unicode list myself. I was beiong lazy…
I’ve been building up a family of extra SVG arrows for use in situations like this. They’re easy enough to generate using TikZ and can be used as [[!include SVG leftrightarrow]]
for example. It’s not quite as convenient as \leftrightarrow
but does make it easy to extend the current set of arrows. I don’t think that the one you want is currently in my list, but it’s easy enough to add. The only catch is that they aren’t extendible, so what length should it be? Is it for inline, or for a commutative diagram?
This is how I did the arrows in Tom’s article, by the way.
Hi Andrew,
currently I’d need such a diagonal arrow in the big table at duality in string theory, the one labeled “U-duality”.
Since that table is not pretty anyway – it wants to be a big nice hyperlinked SVG-diagram but is instead a hack using the available instiki functionality – it wouldn’t really matter much whether the diagonal arrow has precisely the optimal length.
Done. It doesn’t quite match the others, and I didn’t put it in maths mode so the spacing is a bit off, but as you say that table is crying out for a rewrite (you could always try the inbuilt SVG editor) so it’s as much to demonstrate the capability as anything else.
Done.
Thanks!
you could always try the inbuilt SVG editor
This editor doesn’t work on my machine, unfortunately.
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