Formula in Latex: How to use special symbols in Latex?

The name of the pictureThe name of the pictureThe name of the pictureClash Royale CLAN TAG#URR8PPP











up vote
2
down vote

favorite












I want to write following formula in Latex:



Formula



The problem is the "i" underneath "x". It is not a regular fraction. It means that value "x" will be replaced with "i". How can I write this one in Latex?
Additionally, the underlines are longer than the regular one which is used by typing "_". How can I modify the lenght of the underline?



 documentclass[12pt, a4paper]article
 usepackage[T1]fontenc 
 usepackage[utf8]inputenc 
 usepackage[english,ngerman]babel 
 usepackageamsmath,amsfonts,amssymb,amstext 

 begindocument
 $langle x,,underline,,,rangle_k,,langle underline,,,,x mapsto i,,underline,,,rangle_state$
 enddocument


Hopefully, you can help me.



Thanks in advance






math-mode underline







share|improve this question









New contributor




user2379123 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.



















  • Welcome to TeX.SE! Please show us the code you have so far ...
    – Kurt
    3 hours ago










  • Welcome! TikZ... do your work!!
    – manooooh
    3 hours ago










  • I have edited my first post. There is the code.
    – user2379123
    3 hours ago










  • @user2379123 Can you undelete your previous question?
    – egreg
    1 hour ago














up vote
2
down vote

favorite












I want to write following formula in Latex:



Formula



The problem is the "i" underneath "x". It is not a regular fraction. It means that value "x" will be replaced with "i". How can I write this one in Latex?
Additionally, the underlines are longer than the regular one which is used by typing "_". How can I modify the lenght of the underline?



 documentclass[12pt, a4paper]article
 usepackage[T1]fontenc 
 usepackage[utf8]inputenc 
 usepackage[english,ngerman]babel 
 usepackageamsmath,amsfonts,amssymb,amstext 

 begindocument
 $langle x,,underline,,,rangle_k,,langle underline,,,,x mapsto i,,underline,,,rangle_state$
 enddocument


Hopefully, you can help me.



Thanks in advance






math-mode underline







share|improve this question









New contributor




user2379123 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.



















  • Welcome to TeX.SE! Please show us the code you have so far ...
    – Kurt
    3 hours ago










  • Welcome! TikZ... do your work!!
    – manooooh
    3 hours ago










  • I have edited my first post. There is the code.
    – user2379123
    3 hours ago










  • @user2379123 Can you undelete your previous question?
    – egreg
    1 hour ago












up vote
2
down vote

favorite









up vote
2
down vote

favorite











I want to write following formula in Latex:



Formula



The problem is the "i" underneath "x". It is not a regular fraction. It means that value "x" will be replaced with "i". How can I write this one in Latex?
Additionally, the underlines are longer than the regular one which is used by typing "_". How can I modify the lenght of the underline?



 documentclass[12pt, a4paper]article
 usepackage[T1]fontenc 
 usepackage[utf8]inputenc 
 usepackage[english,ngerman]babel 
 usepackageamsmath,amsfonts,amssymb,amstext 

 begindocument
 $langle x,,underline,,,rangle_k,,langle underline,,,,x mapsto i,,underline,,,rangle_state$
 enddocument


Hopefully, you can help me.



Thanks in advance






math-mode underline







share|improve this question









New contributor




user2379123 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











I want to write following formula in Latex:



Formula



The problem is the "i" underneath "x". It is not a regular fraction. It means that value "x" will be replaced with "i". How can I write this one in Latex?
Additionally, the underlines are longer than the regular one which is used by typing "_". How can I modify the lenght of the underline?



 documentclass[12pt, a4paper]article
 usepackage[T1]fontenc 
 usepackage[utf8]inputenc 
 usepackage[english,ngerman]babel 
 usepackageamsmath,amsfonts,amssymb,amstext 

 begindocument
 $langle x,,underline,,,rangle_k,,langle underline,,,,x mapsto i,,underline,,,rangle_state$
 enddocument


Hopefully, you can help me.



Thanks in advance






math-mode underline




math-mode underline






share|improve this question









New contributor




user2379123 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











share|improve this question









New contributor




user2379123 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









share|improve this question




share|improve this question








edited 3 hours ago





















New contributor




user2379123 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









asked 3 hours ago









user2379123

112




112




New contributor




user2379123 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.





New contributor





user2379123 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.






user2379123 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











  • Welcome to TeX.SE! Please show us the code you have so far ...
    – Kurt
    3 hours ago










  • Welcome! TikZ... do your work!!
    – manooooh
    3 hours ago










  • I have edited my first post. There is the code.
    – user2379123
    3 hours ago










  • @user2379123 Can you undelete your previous question?
    – egreg
    1 hour ago
















  • Welcome to TeX.SE! Please show us the code you have so far ...
    – Kurt
    3 hours ago










  • Welcome! TikZ... do your work!!
    – manooooh
    3 hours ago










  • I have edited my first post. There is the code.
    – user2379123
    3 hours ago










  • @user2379123 Can you undelete your previous question?
    – egreg
    1 hour ago















Welcome to TeX.SE! Please show us the code you have so far ...
– Kurt
3 hours ago




Welcome to TeX.SE! Please show us the code you have so far ...
– Kurt
3 hours ago












Welcome! TikZ... do your work!!
– manooooh
3 hours ago




Welcome! TikZ... do your work!!
– manooooh
3 hours ago












I have edited my first post. There is the code.
– user2379123
3 hours ago




I have edited my first post. There is the code.
– user2379123
3 hours ago












@user2379123 Can you undelete your previous question?
– egreg
1 hour ago




@user2379123 Can you undelete your previous question?
– egreg
1 hour ago










1 Answer
1






active

oldest

votes

















up vote
2
down vote













Here's one idea. In the MWE, you can adjust the .7em specification to change the size of both the underscore and the mygap.



documentclassarticle
usepackagetabstackengine,amssymb
stackMath
newcommandudash[2][hrulefill]stackunder#2makebox[.7em]#1
newcommandmygapudash
begindocument
[
langletabbedShortunderstack
 udashx&mygap&udash\ i&&rangle_k 
 langleudashmygap x mapsto imygapudashrangle_mathrmstate
]
enddocument


enter image description here






share|improve this answer






















    Your Answer







    StackExchange.ready(function()
    var channelOptions =
    tags: "".split(" "),
    id: "85"
    ;
    initTagRenderer("".split(" "), "".split(" "), channelOptions);

    StackExchange.using("externalEditor", function()
    // Have to fire editor after snippets, if snippets enabled
    if (StackExchange.settings.snippets.snippetsEnabled)
    StackExchange.using("snippets", function()
    createEditor();
    );

    else
    createEditor();

    );

    function createEditor()
    StackExchange.prepareEditor(
    heartbeatType: 'answer',
    convertImagesToLinks: false,
    noModals: false,
    showLowRepImageUploadWarning: true,
    reputationToPostImages: null,
    bindNavPrevention: true,
    postfix: "",
    onDemand: true,
    discardSelector: ".discard-answer"
    ,immediatelyShowMarkdownHelp:true
    );



    );






    user2379123 is a new contributor. Be nice, and check out our Code of Conduct.









     

    draft saved


    draft discarded


















    StackExchange.ready(
    function ()
    StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2ftex.stackexchange.com%2fquestions%2f457269%2fformula-in-latex-how-to-use-special-symbols-in-latex%23new-answer', 'question_page');

    );

    Post as a guest

















    1 Answer
    1






    active

    oldest

    votes








    1 Answer
    1






    active

    oldest

    votes









    active

    oldest

    votes






    active

    oldest

    votes








    up vote
    2
    down vote













    Here's one idea. In the MWE, you can adjust the .7em specification to change the size of both the underscore and the mygap.



    documentclassarticle
    usepackagetabstackengine,amssymb
    stackMath
    newcommandudash[2][hrulefill]stackunder#2makebox[.7em]#1
    newcommandmygapudash
    begindocument
    [
    langletabbedShortunderstack
     udashx&mygap&udash\ i&&rangle_k 
     langleudashmygap x mapsto imygapudashrangle_mathrmstate
    ]
    enddocument


    enter image description here






    share|improve this answer


























      up vote
      2
      down vote













      Here's one idea. In the MWE, you can adjust the .7em specification to change the size of both the underscore and the mygap.



      documentclassarticle
      usepackagetabstackengine,amssymb
      stackMath
      newcommandudash[2][hrulefill]stackunder#2makebox[.7em]#1
      newcommandmygapudash
      begindocument
      [
      langletabbedShortunderstack
       udashx&mygap&udash\ i&&rangle_k 
       langleudashmygap x mapsto imygapudashrangle_mathrmstate
      ]
      enddocument


      enter image description here






      share|improve this answer
























        up vote
        2
        down vote










        up vote
        2
        down vote









        Here's one idea. In the MWE, you can adjust the .7em specification to change the size of both the underscore and the mygap.



        documentclassarticle
        usepackagetabstackengine,amssymb
        stackMath
        newcommandudash[2][hrulefill]stackunder#2makebox[.7em]#1
        newcommandmygapudash
        begindocument
        [
        langletabbedShortunderstack
         udashx&mygap&udash\ i&&rangle_k 
         langleudashmygap x mapsto imygapudashrangle_mathrmstate
        ]
        enddocument


        enter image description here






        share|improve this answer














        Here's one idea. In the MWE, you can adjust the .7em specification to change the size of both the underscore and the mygap.



        documentclassarticle
        usepackagetabstackengine,amssymb
        stackMath
        newcommandudash[2][hrulefill]stackunder#2makebox[.7em]#1
        newcommandmygapudash
        begindocument
        [
        langletabbedShortunderstack
         udashx&mygap&udash\ i&&rangle_k 
         langleudashmygap x mapsto imygapudashrangle_mathrmstate
        ]
        enddocument


        enter image description here







        share|improve this answer














        share|improve this answer



        share|improve this answer








        edited 2 hours ago

























        answered 2 hours ago









        Steven B. Segletes

        149k9188394




        149k9188394




















            user2379123 is a new contributor. Be nice, and check out our Code of Conduct.









             

            draft saved


            draft discarded


















            user2379123 is a new contributor. Be nice, and check out our Code of Conduct.












            user2379123 is a new contributor. Be nice, and check out our Code of Conduct.











            user2379123 is a new contributor. Be nice, and check out our Code of Conduct.













             


            draft saved


            draft discarded














            StackExchange.ready(
            function ()
            StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2ftex.stackexchange.com%2fquestions%2f457269%2fformula-in-latex-how-to-use-special-symbols-in-latex%23new-answer', 'question_page');

            );

            Post as a guest
































































            Comments

            Post a Comment

            Popular posts from this blog

            What does second last employer means? [closed]

            Image
            Clash Royale CLAN TAG #URR8PPP .everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty margin-bottom:0; up vote -3 down vote favorite Say, for example I have worked in the following companies, Company A => 2010 - 2011 Company B => 2011 - 2012 Company C => 2012 - Till Date Company D => Have offer Now assume Company D is asking to submit documents from my second last employer. So from the list of companies given, which company would be qualified as second last employer? software-industry employer share | improve this question asked Aug 10 '14 at 5:16 Rajaprabhu Aravindasamy 559 1 6 13 closed as off-topic by Jim G., jmort253 ♦ Aug 11 '14 at 1:58 This question appears to be off-topic. The users who voted to close gave this specific reason: "Questions seeking advice on company-specific regulations, agreements, or policies should be directed to your manager or HR department. Questions that address...
            Read more

            Installing NextGIS Connect into QGIS 3?

            Image
            Clash Royale CLAN TAG #URR8PPP .everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty margin-bottom:0; up vote 1 down vote favorite Just acquired free version of NEXTGIS and trying to install the plugin for QGIS. It tells me it was not designed for version 3 of QGIS. How do I set up the QGIS-NEXTGIS interface then? qgis qgis-plugins nextgis share | improve this question edited 3 hours ago PolyGeo ♦ 51.9k 17 77 233 asked 4 hours ago IanGS 16 4 New contributor IanGS is a new contributor to this site. Take care in asking for clarification, commenting, and answering. Check out our Code of Conduct. add a comment  |  up vote 1 down vote favorite Just acquired free version of NEXTGIS and trying to install the plugin for QGIS. It tells me it was not designed for version 3 of QGIS. How do I set up the QGIS-NEXTGIS interface then? qgis qgis-plugin...
            Read more

            One-line joke

            A one-liner is a joke that is delivered in a single line. A good one-liner is said to be pithy - concise and meaningful. [1] Comedians and actors use this comedic method as part of their act, e.g. Jimmy Carr, Tommy Cooper, Rodney Dangerfield, Norm Macdonald, Ken Dodd, Stewart Francis, Zach Galifianakis, Mitch Hedberg, Anthony Jeselnik, Milton Jones, Shappi Khorsandi, Jay London, Mark Linn-Baker, Demetri Martin, Groucho Marx, Dan Mintz, Emo Philips, Tim Vine, Steven Wright and Henny Youngman and Arnold Schwarzenegger. [ citation needed ] Many fictional characters are also known to deliver one-liners, including James Bond, who usually includes pithy and laconic quips after disposing of a villain. [ citation needed ] Examples "A baby seal walks into a club." "A dyslexic man walks into a bra." (Anonymous) "There are three types of people, those who can count and those who can't." "Venison's dear, isn't it?" (Jimmy Carr) "An escala...
            Read more