Take the 2-minute tour ×
TeX - LaTeX Stack Exchange is a question and answer site for users of TeX, LaTeX, ConTeXt, and related typesetting systems. It's 100% free, no registration required.

I am using writelatex to write a paper and I need to type the semidirect product symbol...but for some reason, it keeps saying "error" and I can't see the semidirect product in the paper. I tried both \rtimes and \ltimes and both did not work. I searched the internet to see if there were other ways to type it using latex but I only found these two, and they both didn't work in writelatex...so I was wondering if anybody could help me with this...

share|improve this question
3  
Are you using the amssymb package? –  kan Apr 26 '13 at 10:27
1  
And here goes a MWE: writelatex.com/158819zfcjtc –  kan Apr 26 '13 at 10:29
4  
No, I'd think you'll have to load amsmath together with amssymb: \usepackage{amsmath, amssymb}. –  kan Apr 26 '13 at 10:34
1  
The ams packages are distributed in several different families. Take a look at ftp.ams.org/pub/tex/doc/amsmath/amsldoc.pdf and ftp.ams.org/pub/tex/doc/amsfonts/amsfndoc.pdf to see what the amsmath and amssymb packages contain. –  Willie Wong Apr 26 '13 at 10:43
3  
@Artus amsmath provides many facilities for typesetting, such as alignment environments; amssymb provides scores of symbols; they are complementary, not alternative. –  egreg Apr 26 '13 at 11:03
show 5 more comments

closed as too localized by Tom Bombadil, Thorsten, Matthew Leingang, barbara beeton, tohecz Apr 26 '13 at 11:46

This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet. For help making this question more broadly applicable, visit the help center.If this question can be reworded to fit the rules in the help center, please edit the question.

1 Answer

up vote 7 down vote accepted

You can use DeTeXify for finding out such things:

enter image description here

It also tells you that you need the amssymb package.

share|improve this answer
add comment

Not the answer you're looking for? Browse other questions tagged or ask your own question.