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1. • CommentRowNumber1.
   • CommentAuthorUrs
   • CommentTimeFeb 24th 2012
   • (edited Feb 24th 2012)
   • PermaLink
   Author: Urs
   Format: MarkdownItexWhat's the way, if any, to typeset a diagonal arrow that points in both direction? (like $\swarrow$ and $\nearrow$, but having arrowheads on both sides)

   What’s the way, if any, to typeset a diagonal arrow that points in both direction?

   (like $\swarrow$ and $\nearrow$, but having arrowheads on both sides)

2. • CommentRowNumber2.
   • CommentAuthorMike Shulman
   • CommentTimeFeb 24th 2012
   • PermaLink
   Author: Mike Shulman
   Format: MarkdownItexWell, 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](http://www.alanwood.net/unicode/arrows.html). So my guess is, there isn't one, short of escaping to a drawing package like xy, tikz, or svg.

   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.

3. • CommentRowNumber3.
   • CommentAuthorUrs
   • CommentTimeFeb 24th 2012
   • PermaLink
   Author: Urs
   Format: MarkdownItexOkay, thanks. I should have checked that unicode list myself. I was beiong lazy...

   Okay, thanks. I should have checked that unicode list myself. I was beiong lazy…

4. • CommentRowNumber4.
   • CommentAuthorAndrew Stacey
   • CommentTimeFeb 24th 2012
   • PermaLink
   Author: Andrew Stacey
   Format: MarkdownItexI'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.

   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.

5. • CommentRowNumber5.
   • CommentAuthorUrs
   • CommentTimeFeb 24th 2012
   • (edited Feb 24th 2012)
   • PermaLink
   Author: Urs
   Format: MarkdownItexHi 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.

   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.

6. • CommentRowNumber6.
   • CommentAuthorAndrew Stacey
   • CommentTimeFeb 24th 2012
   • PermaLink
   Author: Andrew Stacey
   Format: MarkdownItexDone. 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. 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.

7. • CommentRowNumber7.
   • CommentAuthorUrs
   • CommentTimeFeb 24th 2012
   • PermaLink
   Author: Urs
   Format: MarkdownItex> Done. Thanks! > you could always try the inbuilt SVG editor This editor doesn't work on my machine, unfortunately.

   Done.

   Thanks!

   you could always try the inbuilt SVG editor

   This editor doesn’t work on my machine, unfortunately.