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to write argmax with respect to some variable (i.e. theta), code:

\arg\max_\theta


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25 Responses to “how to write argmax in latex”

  1. on 31 Jul 2006 at 12:11 pm Hirak

    Nice blog for LATEX stuff. Keep it up!
    **
    The above works quite well though it leaves an extra space between the ARG and MAX. To avoid it use the negative space command:

    arg ! max_theta

    hth!

  2. on 31 Jul 2006 at 12:12 pm Lawrence David

    cool tip! learned my new trick of the day :)

  3. on 10 Aug 2006 at 11:05 am Nacho Martin

    Nice tip!

    An very useful at this precise moment :)

  4. on 15 Sep 2006 at 4:14 pm Rafa

    you are #1 when one googles “argmax latex”
    you saved me from opening the stupid latex manual

  5. on 19 Sep 2006 at 9:55 am js

    with this solution the subscripted variable will appear centered beneath the word “max”, instead of centered beneath the whole word. i found a way to solve this on wikipedia:

    place the following command in the header of your latex document:

    newcommand{argmax}{operatornamewithlimits{argmax}}

    now you can use it like this:

    argmax_theta

  6. on 19 Oct 2006 at 8:01 pm wannabecon

    just a correction, it should be

    \newcommand{\argmax}{\operatornamewithlimits{argmax}}

  7. on 23 May 2007 at 12:50 pm yur

    Alternatively,

    \DeclareMathOperator*{\argmax}{arg\,max}

  8. on 11 Oct 2007 at 8:36 pm Bill McNeill

    For the operatornamewithlimits trick to work you have to \usepackage{amsmath}.

  9. on 02 Oct 2008 at 10:26 am aster

    nice one
    Thanks!

  10. on 29 Oct 2008 at 2:55 pm Ryan

    Yeah, I like the \DeclareMathOperator* solution much better. If you’re using LaTeX, you might as well get all the alignment correct, right?

  11. on 06 Nov 2008 at 1:42 pm ganesh

    Thanks for this tip. It was very useful

  12. on 12 Mar 2009 at 9:35 pm Luke

    Sweet. Thanks for the tip!
    Still helping in 2009

  13. on 22 Mar 2009 at 2:50 pm sth4nth

    \underset{x}{\operatorname{argmax}}

  14. on 27 Mar 2009 at 6:40 pm Sean

    Yeah,\newcommand{\argmax}{\operatornamewithlimits{argmax}} didn’t quite do the job for me, but when combined with the underset it works great ^_^

    Thanks to all!

  15. on 11 May 2009 at 4:18 pm Jake

    Awesome! Useful post and comments :) Thanks!

  16. on 03 Aug 2009 at 9:49 am brais

    great!

    \newcommand{\argmax}{\operatornamewithlimits{argmax}} combined with the use of package amsmath is fine for the environment “displaymath” and similar, but whenever used with $$ (for using it “inside” the text) is not working properly. \underset{x}{\operatorname{argmax}} solves this problem

    thanks a lot!! (never thought that would get so complicated!)

  17. on 02 Dec 2009 at 11:58 am hi

    \newcommand{\argmax}[1]{\underset{#1}{\operatorname{argmax}}}

  18. on 29 Jan 2010 at 9:21 am gokhan

    Thanks a lot to everyone! the last one, i was able to get it worked correctly.

  19. on 10 Mar 2010 at 1:56 am palash

    Thanks all.

  20. on 25 Jun 2011 at 6:21 am xixi

    Sweet, work in LyX as well.

  21. on 09 Jul 2011 at 5:33 am ben

    the last one didn’t work for me using WinEdt 6.0, this worked instead:

    \newcommand{\argmax}[1]{\operatorname*{argmax}_{#1}}

  22. on 31 May 2012 at 4:46 pm andrew

    \arg\max\limits_{\theta}

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