How can I produce the text Word_one_two in LaTeX?
I tried:
Samp\_Dist\_Corr
But, it doesn't quite look right. Also, I want it in the typewriter font, so actually, I'm doing:
\texttt{Samp\_Dist\_Corr}
I find it looks a bit like the underscore is merging in to the bottom of the "D", but maybe it's just because of the typewriter D?
You may prefer the character from the tt font:
\documentclass{article}
\begin{document}
\texttt{Samp\_Dist\_Corr}
\verb|Samp_Dist_Corr|
\texttt{Samp\char`_Dist\char`_Corr}
\end{document}
Or probably better add \usepackage[T1]{fontenc} then all the above forms will use the character from the font.
_ is used in text mode LaTeX is not smart enough to send it to output directly?
– Real Dreams
Oct 11 '13 at 18:23
\alpha also in the original TeX OT1 encoded TeX fonts, they typically didn't have a _ character so it isn't clear what "output directly" means, choice of switching to tt which did have, or using a rule or...
– David Carlisle
Oct 11 '13 at 18:27
\catcode\_=12(to make it a standard punctuation character) and you'll seee that unless in tt font you get a dot accent, same as<and>are not useful out of text mode and give spanish punctuation inverted!and?`
– David Carlisle
Jan 05 '14 at 02:17
\usepackage[T1]{fontenc} was the key. You should probably mention it more prominently in your answer.
– varepsilon
Aug 03 '16 at 13:02
\verb|My_Text| command doesn't work in \begin{table}\begin{tabular} My_Table\end{tabular}\end{table}. How can I resolve the issue?
– Admia
Jan 17 '17 at 02:34
\_ as it says here.
– David Carlisle
Jan 17 '17 at 07:47
You can use \textunderscore also.
\documentclass{article}
%
\begin{document}
Samp\textunderscore Distt\textunderscore Corr
\texttt{Samp\textunderscore Distt\textunderscore Corr}
\end{document}
Underscore is not merging at the bottom of D actually. It is very close to it.
\textunderscore thing didn't actually work for me:
The underscore symbol \texttt{\char`_} is a special variable that contains the result of the last printed value.
The underscore symbol \texttt{\textunderscore} is a special variable that contains the result of the last printed value.
produces http://minireference.com/static/textunderscore_not_shown_well.png
– ivan Jul 22 '14 at 16:37A fairly elementary way of stripping special meaning from things is to \detokenize them:
\documentclass{article}
\begin{document}
\texttt{\detokenize{Samp_Dist_Corr}}
\texttt{\detokenize{a@b\c_d&e~f g}}
\end{document}
Note how a space is inserted after a "control sequence". See What are the exact semantics of \detokenize?
\detokenize is a godsend for basic, machine-generated documents.
– Sean Allred
Nov 12 '15 at 13:27
\usepackage{url} (and then \url{http://blabla.de/~tilde}) for URLs
– cgnieder
Apr 24 '17 at 19:09
ä is not one unicode token but two tokens and with \usepackage[utf8]{inputenc} the package does clever stuff to “fool” everybody. \detokenize then just reveals the truth :)
– cgnieder
Apr 24 '17 at 19:12
I was looking to get the underscore character inside a word in any font, and Google brought me here, so here's the solution I found:
{\_}
word{\_}one{\_}two
produces
_
word_one_two
The solution I like best is to put \chardef\_=`_ in the preamble and use \_ to typeset an underscore. That is because:
\verb doesn't work in macros,\char`_ is tedious to write and looks confusing,\usepackage[T1]{fontenc} messes up all my fonts,\textunderscore doesn't work in \texttt,\detokenize looks promising, but I already use a lot of \_,{\_} doesn't work in \texttt,\underline{{ }{ }} looks really bad and \underline{{ }} still doesn't look quite right,\rule is a hack that doesn't look right.Example:
\documentclass{article}
\begin{document}
\texttt{Samp\_Dist\_Corr} -- original
\texttt{Samp{\_}Dist{\_}Corr} -- brackets
\texttt{Samp\textunderscore Dist\textunderscore Corr} -- textunderscore
\texttt{Samp\underline{{ }{ }}Dist\underline{{ }{ }}Corr} -- double underline
\texttt{Samp\underline{{ }}Dist\underline{{ }}Corr} -- underline
\newcommand{\TextUnderscore}{\rule{.4em}{.4pt}}
\texttt{Samp\TextUnderscore{}Dist\TextUnderscore{}Corr} -- rule
\verb|Samp_Dist_Corr| -- verb
\texttt{Samp\char`_Dist\char`_Corr} -- char
\texttt{\detokenize{Samp_Dist_Corr}} -- detokenize
\chardef\_=`_
\texttt{Samp\_Dist\_Corr} -- chardef
\end{document}
\usepackage[T1]{fontenc} messes up all my fonts,« Really? How's that? Even if I only load one package this usually is it…
– cgnieder
Apr 24 '17 at 19:05
fontenc because the document where it occurred was my master's thesis with a lot of different packages. But I guess I can post an example rendering without and with fontenc if you're interested.
– arekolek
Apr 24 '17 at 19:19
There's a package for this!
\documentclass{article}
\usepackage{underscore}
\begin{document}
This_is_probably_not a_good_idea.
\end{document}
\usepackage{underscore} does have problems, because it will cause problems where LaTeX does interpret underscores correctly, such as file names :-(
– con
Mar 05 '19 at 15:53
\_, not the other way around.
– DrBeco
Jul 02 '19 at 04:23
An explanation of what the answers do.
(*): \verb always use the tt font instead of current font.
\rule and \underline are "obvious" (typeset a rectangular black box and some "blank space" with underline respectively), read e.g. LaTeX2e unofficial reference manual for more details.
Remark:
In T1 encoding, there's absolutely no reason to use one of the 6 items in the "char 95 of current font" category. \_ is shorter.
Usually, there's no reason to use {\_} or \textunderscore.
\_ is defined to be equivalent to \textunderscore and also work in math mode.
(in other words, \textunderscore is identical to \_ in text mode, and error out in math mode. Besides it's longer to type.)
As far as I know (and also confirmed by some other users) the extra grouping in {\_} does nothing.
\char is primitive TeX command. The LaTeX command is \symbol.
You can see that LaTeX default underscore does not use char 95 when encoding is OT1, because it occasionally fails depends on the font (i.e., the encoding does not guarantee that the character at position 5F (hex) is an underscore, that character in the specific font cmtt10 "happens" to be an underscore)
To make it "smart" (works in limited cases) it's possible to do \def\_{\ifttdefault{\char95}{\textunderscore}} using the macro in other question.
Not that \string and \detokenize is never useful, but in the context of typesetting a single underscore \char 95 or \char `_ is shorter and does the same thing.
\underline is a bit "semantically misleading", but otherwise it can be used, no problem. Although you may find it easier to just use the optional raise parameter to move the rule lower and/or \hspace to add additional space: \hspace{.1em}\rule[-0.2em]{.4em}{.3pt} gives 
_ gives wrong result https://tex.stackexchange.com/questions/346883/detokenize-does-not-produce-the-expected-underscores/ ■ question that asks what rule LaTeX uses for underscore https://tex.stackexchange.com/questions/153634/how-does-work-if-ot1-is-default-encoding-for-latex
– user202729
Jun 26 '22 at 08:04
In a pinch, a horizontal \rule may also suffice:
\documentclass{article}
\newcommand{\TextUnderscore}{\rule{.4em}{.4pt}}
\begin{document}
\texttt{Samp\textunderscore{}Dist\textunderscore{}Corr}\par
\texttt{Samp\_Dist\_Corr}\par
\texttt{Samp\TextUnderscore{}Dist\TextUnderscore{}Corr}
\end{document}
The width - .4em - can be adjusted to suit. The height - .4pt - is the "typical" rule-thickness used elsewhere in the document.
For those not interested the functionality of the underscore in LaTeX and just want it to function like any other character, the category code of the underscore can be changed to make it work as might be expected. Here, we assign the underscore the same category code that most punctuation has. Choose one of the following syntaxes according to your preference:
\catcode`\_=12 % alphabetic constant syntax
\catcode`_=12 % alphabetic constant syntax
\catcode"5F=12 % unicode decimal syntax
\catcode'137=12 % octal syntax
\catcode95=12 % decimal syntax
This way, you can go on about your happy life using the underscore as you normally would. If you need to subset text in math mode, the macro \sb can still be used in math mode for subscript.
This explanation would not be complete without stating how to restore the underscore to its original category code. Pick one of the following syntaxes according to your preference:
\catcode`\_=8 % alphabetic constant syntax
\catcode`_=8 % alphabetic constant syntax
\catcode"5F=8 % unicode decimal syntax
\catcode'137=8 % octal syntax
\catcode95=8 % decimal syntax
See egreg's answer: Is it safe to set underscore to a non-active character?
The easiest way to have an occasional underscore in text mode (without need to reprogram the whole Matrix...) IMHO is as following:
e.g.:
James\underline{{ }{ }}Bond
which produces a nice James_bond, with a correct spacing between letters
I hope it'll help you.
\_.)
– Peter - Reinstate Monica
Nov 24 '15 at 17:01
\enspace and got an intermediate result. So, if \underline{{ }{ }} is too big, and \underline{{ }} is too small, you can try out \underline{\enspace} as well as combinations of these commands
– Leone
Jul 18 '21 at 15:26
\underline{\hspace{1cm}} is the best solution, I think. Adjust the length of hspace as you see fit.
\underline{{ }} or \underline{{ }{ }} which has already be shown in, e.g., arekolek's answer?
– Schweinebacke
Jul 17 '17 at 18:27
Putting the following at the top of the file seems to work for me. You can then use \_ for underscore.
\def\_{{\tt\char95}}
\_ but _ on its own won't expand to this definition of \_ (unless you have that too somewhere).
– ShreevatsaR
Jun 29 '17 at 04:16
\_. I included this because some fonts don't show the underslash character. \tt makes sure that it shows.
– Daniel Patru
Jun 29 '17 at 15:43
I write mostly documents without ever needing subscripts, so my favourite solution is to redefine the catcode of the underscore character. Then it behaves as any normal letter:
I put this into the preamble:
\catcode`\_=12
Should I ever need a subscript in math mode I can use \sb:
$Energy\sb{kinetic}$
Or if I need subscript in text mode I just use \textsubscript:
Normal word\textsubscript{yay!}
I wanted to include multiple lines of code with underscores. \verb|...| introduced spacing between the lines and \texttt{} mean that I had to escape each underscore. The best way I found was to use \begin{Verbatim}
\begin{Verbatim}
regs.regs_PC = regs.regs_NPC;
regs.regs_NPC += sizeof(md_inst_t);
\end{Verbatim}
Which compiled as
To indent the block, use\usepackage{fancyvrb} and write \begin{Verbatim}[xleftmargin=.5in]
If you use the
underscorepackage, then you don't need to escape the_in text mode.FWIW, in ConTeXt,
– Aditya Mar 20 '12 at 03:17_has a letter catcode in text mode, so simply typingSamp_Distt_Corrworks.underscoreworks, but Vim still highlights it as an error. To avoid, editvimXX/syntax/tex.vim:texOnlyMath "[_^]"becomes"[\^]". – Evgeni Sergeev Jul 16 '13 at 04:40underscorepackage is that it's not bold in\textbf{a_b}. – Evgeni Sergeev Jul 30 '13 at 07:34\includegraphics{filename_with_underscore}when theunderscorepackage is used. – Evgeni Sergeev Aug 01 '13 at 02:27\usepackage[Q=yes,pverb-linebreak=no]{examplep}and then\Q{identifier_typeset_in_monospace}. This suits me, because all my underscores occur in code: variables, function names, filenames, etc., all of which could be typeset in a verbatim-like environment. – Evgeni Sergeev Aug 23 '13 at 04:00_do, except annoy all of us? – Aaron McDaid Nov 04 '14 at 12:51The smallest $n such that $2^n>1000$ is~10.[…] TeX will automatically insert a$before the^, and you will get an error message. In this way the computer has gotten back into synch, and the rest of the document can be typeset as if nothing had happened.” – ShreevatsaR Jun 29 '17 at 01:39\usepackage{underscore}. I do not recommend the usage of this package and the upvoting of the comment suggesting the use of it. – tommy.carstensen Nov 28 '17 at 11:29works, as well as_{--}` for a longer dash – verdy_p May 19 '19 at 03:42\_does not work at all (invalid syntax encountered) in many simple TeX implementations, even within the block of\text{...}or\mbox{...}, and\textttis also not working (requires also an additional package whose transclusion by\usepackageis restricted/forbidden) – verdy_p May 19 '19 at 03:50{}before the `metacharacter for subscripts. So a full substitute of the underscore is{}-, or{}{select your dash here}`. – verdy_p May 19 '19 at 15:41\_or_-in the font package definition you use for the monospaced style, but_—(using the em-dash U+2014) should be OK. – verdy_p May 19 '19 at 15:53_(and other characters) to work in text mode by default and don't need to use the math mode: see Handling of special LaTeX characters in text - TeX - LaTeX Stack Exchange – user202729 Jan 05 '22 at 12:34