from the desk of stinkpot

split a long, multiline formula over two lines

March 29th, 2006 by Lawrence David

to split a long, multiline formula over two lines, import the “amsmath” package and use the “split command” and double slashes.

for instance, to produce the above equation, use the following code:

\usepackage{amsmath}
…

\begin{split}
\arg\max_\Theta\left[\sum_zP(\mathcal{G}|\mathcal{D},\mathcal{S})
P(\mathcal{G}|\mathcal{S},\Theta_n)\log{P(\mathcal{D}|\mathcal{G},
\mathcal{S},\Theta)}\right. \\
+
\left.\sum_zP(\mathcal{G}|\mathcal{D},\mathcal{S})P(\mathcal{G}|
\mathcal{S},\Theta_n)\log{P(\mathcal{D}|\mathcal{G},\mathcal{S},\Theta)}\right]
\end{split}

Posted in LaTeX | 5 Comments »

if that was helpful ...

check out the other tips and tricks i've compiled on these pages. you might learn something else interesting!

5 Responses to “split a long, multiline formula over two lines”

1. on 19 Nov 2007 at 12:51 am   Roozbeh

   Hi!
   You didn’t get anything wrong here. I just wanted to tell you that your website is perfect!
   
   Roozbeh

2. on 02 Oct 2008 at 2:10 pm   Alfredo

   Great tip! do you know a good way to guaranty that in your example, the square brakets are the same size.
   In your example they look similar in height but this is only a coincidence if the top line didn’t have a \sum then the brakets will have different sizes.

   I am having that problem right now. (I know you can hack it and add a invisible symbols but thats not the solution I am looking for).

3. on 03 Oct 2008 at 7:22 am   Lawrence David

   sorry – no idea!

   if you figure it out, feel free to leave a note here in the comments!

4. on 12 Aug 2009 at 6:46 pm   Oliver

   Thanks for the tip! Had a nasty equation that was covering up its own number, but managed to fix it with this

5. on 16 Apr 2012 at 10:35 am   ecn

   to have [ of the same size
   type \right. before first \\,
   then \left. at the start and \right]
   as usual in the end, or smth like this.