How to write symbol in math mode in LaTeX/MathJax?












3














How can we insert the symbol in math mode for LaTeX and MathJax without loading any package that is required to achieve this symbol?



I tried



documentclass{article}

usepackage{amsmath}



begin{document}

$$

end{document}


but the program gives errors, also with ${}$, text{} etc. fails. In MathJax I use $$ and it produces error.



The context of the problem is I want to represent the (missing) symbol inside a formula (not in SE). The solution is add that symbol, so I want to alert the user "Hey, you forgot to add $$ in ${1,2,3}$. It should be ${1,2,3}$" (of course the site does not have single quotes (`)).



Thanks!!






math-mode symbols







share|improve this question




















  • 2




    Try textbackslash in text mode. But what do you need that symbol for?
    – siracusa
    Nov 30 at 4:00






  • 4




    backslash in math mode.
    – CarLaTeX
    Nov 30 at 4:00






  • 2




    “without loading any package” But you are loading amsmath!
    – Henri Menke
    Nov 30 at 4:45






  • 2




    Reading your comment to Henri's answer, I think it would be better to add to your question why you want to use a backslash character in math mode. Displaying escaped braces in math mode seems really uncommon to me, so perhaps there is a completely different but better solution to your actual problem (I suspect it has to do with displaying source code)
    – siracusa
    Nov 30 at 5:21






  • 1




    @manooooh I would use a code block in HTML (or whatever output format you're using): anything except a LaTeX/MathJax formula (because you want to show the literal raw text that is to be input, not the result of treating it as a formula).
    – ShreevatsaR
    Nov 30 at 7:19


















3














How can we insert the symbol in math mode for LaTeX and MathJax without loading any package that is required to achieve this symbol?



I tried



documentclass{article}

usepackage{amsmath}



begin{document}

$$

end{document}


but the program gives errors, also with ${}$, text{} etc. fails. In MathJax I use $$ and it produces error.



The context of the problem is I want to represent the (missing) symbol inside a formula (not in SE). The solution is add that symbol, so I want to alert the user "Hey, you forgot to add $$ in ${1,2,3}$. It should be ${1,2,3}$" (of course the site does not have single quotes (`)).



Thanks!!






math-mode symbols







share|improve this question




















  • 2




    Try textbackslash in text mode. But what do you need that symbol for?
    – siracusa
    Nov 30 at 4:00






  • 4




    backslash in math mode.
    – CarLaTeX
    Nov 30 at 4:00






  • 2




    “without loading any package” But you are loading amsmath!
    – Henri Menke
    Nov 30 at 4:45






  • 2




    Reading your comment to Henri's answer, I think it would be better to add to your question why you want to use a backslash character in math mode. Displaying escaped braces in math mode seems really uncommon to me, so perhaps there is a completely different but better solution to your actual problem (I suspect it has to do with displaying source code)
    – siracusa
    Nov 30 at 5:21






  • 1




    @manooooh I would use a code block in HTML (or whatever output format you're using): anything except a LaTeX/MathJax formula (because you want to show the literal raw text that is to be input, not the result of treating it as a formula).
    – ShreevatsaR
    Nov 30 at 7:19
















3












3








3







How can we insert the symbol in math mode for LaTeX and MathJax without loading any package that is required to achieve this symbol?



I tried



documentclass{article}

usepackage{amsmath}



begin{document}

$$

end{document}


but the program gives errors, also with ${}$, text{} etc. fails. In MathJax I use $$ and it produces error.



The context of the problem is I want to represent the (missing) symbol inside a formula (not in SE). The solution is add that symbol, so I want to alert the user "Hey, you forgot to add $$ in ${1,2,3}$. It should be ${1,2,3}$" (of course the site does not have single quotes (`)).



Thanks!!






math-mode symbols







share|improve this question















How can we insert the symbol in math mode for LaTeX and MathJax without loading any package that is required to achieve this symbol?



I tried



documentclass{article}

usepackage{amsmath}



begin{document}

$$

end{document}


but the program gives errors, also with ${}$, text{} etc. fails. In MathJax I use $$ and it produces error.



The context of the problem is I want to represent the (missing) symbol inside a formula (not in SE). The solution is add that symbol, so I want to alert the user "Hey, you forgot to add $$ in ${1,2,3}$. It should be ${1,2,3}$" (of course the site does not have single quotes (`)).



Thanks!!






math-mode symbols




math-mode symbols






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 30 at 5:33

























asked Nov 30 at 3:47









manooooh

8801315




8801315








  • 2




    Try textbackslash in text mode. But what do you need that symbol for?
    – siracusa
    Nov 30 at 4:00






  • 4




    backslash in math mode.
    – CarLaTeX
    Nov 30 at 4:00






  • 2




    “without loading any package” But you are loading amsmath!
    – Henri Menke
    Nov 30 at 4:45






  • 2




    Reading your comment to Henri's answer, I think it would be better to add to your question why you want to use a backslash character in math mode. Displaying escaped braces in math mode seems really uncommon to me, so perhaps there is a completely different but better solution to your actual problem (I suspect it has to do with displaying source code)
    – siracusa
    Nov 30 at 5:21






  • 1




    @manooooh I would use a code block in HTML (or whatever output format you're using): anything except a LaTeX/MathJax formula (because you want to show the literal raw text that is to be input, not the result of treating it as a formula).
    – ShreevatsaR
    Nov 30 at 7:19
















  • 2




    Try textbackslash in text mode. But what do you need that symbol for?
    – siracusa
    Nov 30 at 4:00






  • 4




    backslash in math mode.
    – CarLaTeX
    Nov 30 at 4:00






  • 2




    “without loading any package” But you are loading amsmath!
    – Henri Menke
    Nov 30 at 4:45






  • 2




    Reading your comment to Henri's answer, I think it would be better to add to your question why you want to use a backslash character in math mode. Displaying escaped braces in math mode seems really uncommon to me, so perhaps there is a completely different but better solution to your actual problem (I suspect it has to do with displaying source code)
    – siracusa
    Nov 30 at 5:21






  • 1




    @manooooh I would use a code block in HTML (or whatever output format you're using): anything except a LaTeX/MathJax formula (because you want to show the literal raw text that is to be input, not the result of treating it as a formula).
    – ShreevatsaR
    Nov 30 at 7:19










2




2




Try textbackslash in text mode. But what do you need that symbol for?
– siracusa
Nov 30 at 4:00




Try textbackslash in text mode. But what do you need that symbol for?
– siracusa
Nov 30 at 4:00




4




4




backslash in math mode.
– CarLaTeX
Nov 30 at 4:00




backslash in math mode.
– CarLaTeX
Nov 30 at 4:00




2




2




“without loading any package” But you are loading amsmath!
– Henri Menke
Nov 30 at 4:45




“without loading any package” But you are loading amsmath!
– Henri Menke
Nov 30 at 4:45




2




2




Reading your comment to Henri's answer, I think it would be better to add to your question why you want to use a backslash character in math mode. Displaying escaped braces in math mode seems really uncommon to me, so perhaps there is a completely different but better solution to your actual problem (I suspect it has to do with displaying source code)
– siracusa
Nov 30 at 5:21




Reading your comment to Henri's answer, I think it would be better to add to your question why you want to use a backslash character in math mode. Displaying escaped braces in math mode seems really uncommon to me, so perhaps there is a completely different but better solution to your actual problem (I suspect it has to do with displaying source code)
– siracusa
Nov 30 at 5:21




1




1




@manooooh I would use a code block in HTML (or whatever output format you're using): anything except a LaTeX/MathJax formula (because you want to show the literal raw text that is to be input, not the result of treating it as a formula).
– ShreevatsaR
Nov 30 at 7:19






@manooooh I would use a code block in HTML (or whatever output format you're using): anything except a LaTeX/MathJax formula (because you want to show the literal raw text that is to be input, not the result of treating it as a formula).
– ShreevatsaR
Nov 30 at 7:19












1 Answer
1






active

oldest

votes


















7














You probably want to use the backslash to exclude elements from a set. To this end use setminus. To get the set of all integers without zero, you'd write



documentclass{article}

usepackage{amsmath}

usepackage{amssymb}

begin{document}

$mathbb{Z} setminus { 0 }$

end{document}


enter image description here



Also works in MathJax. Live example: http://mathb.in/29559






share|improve this answer





















  • I was aware of setminus. As I said in comments, the symbol is for represent the required to write braces (here {}) but I wanted to display it in math mode, so I think the appropiate symbol is backslash.
    – manooooh
    Nov 30 at 5:01








  • 3




    @manooooh - You wrote, "I think the appropriate symbol is backslash". That's not quite right, since setminus has math type "mathbin" ("binary operator"), whereas backslash has math type "mathord" ("ordinary"). In order to get the typographically proper amount of spacing around the backslash character, what you would need to write is mathbin{backslash}.
    – Mico
    Nov 30 at 6:36













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1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









7














You probably want to use the backslash to exclude elements from a set. To this end use setminus. To get the set of all integers without zero, you'd write



documentclass{article}

usepackage{amsmath}

usepackage{amssymb}

begin{document}

$mathbb{Z} setminus { 0 }$

end{document}


enter image description here



Also works in MathJax. Live example: http://mathb.in/29559






share|improve this answer





















  • I was aware of setminus. As I said in comments, the symbol is for represent the required to write braces (here {}) but I wanted to display it in math mode, so I think the appropiate symbol is backslash.
    – manooooh
    Nov 30 at 5:01








  • 3




    @manooooh - You wrote, "I think the appropriate symbol is backslash". That's not quite right, since setminus has math type "mathbin" ("binary operator"), whereas backslash has math type "mathord" ("ordinary"). In order to get the typographically proper amount of spacing around the backslash character, what you would need to write is mathbin{backslash}.
    – Mico
    Nov 30 at 6:36


















7














You probably want to use the backslash to exclude elements from a set. To this end use setminus. To get the set of all integers without zero, you'd write



documentclass{article}

usepackage{amsmath}

usepackage{amssymb}

begin{document}

$mathbb{Z} setminus { 0 }$

end{document}


enter image description here



Also works in MathJax. Live example: http://mathb.in/29559






share|improve this answer





















  • I was aware of setminus. As I said in comments, the symbol is for represent the required to write braces (here {}) but I wanted to display it in math mode, so I think the appropiate symbol is backslash.
    – manooooh
    Nov 30 at 5:01








  • 3




    @manooooh - You wrote, "I think the appropriate symbol is backslash". That's not quite right, since setminus has math type "mathbin" ("binary operator"), whereas backslash has math type "mathord" ("ordinary"). In order to get the typographically proper amount of spacing around the backslash character, what you would need to write is mathbin{backslash}.
    – Mico
    Nov 30 at 6:36
















7












7








7






You probably want to use the backslash to exclude elements from a set. To this end use setminus. To get the set of all integers without zero, you'd write



documentclass{article}

usepackage{amsmath}

usepackage{amssymb}

begin{document}

$mathbb{Z} setminus { 0 }$

end{document}


enter image description here



Also works in MathJax. Live example: http://mathb.in/29559






share|improve this answer












You probably want to use the backslash to exclude elements from a set. To this end use setminus. To get the set of all integers without zero, you'd write



documentclass{article}

usepackage{amsmath}

usepackage{amssymb}

begin{document}

$mathbb{Z} setminus { 0 }$

end{document}


enter image description here



Also works in MathJax. Live example: http://mathb.in/29559







share|improve this answer












share|improve this answer



share|improve this answer










answered Nov 30 at 4:43









Henri Menke

69.8k8156260




69.8k8156260












  • I was aware of setminus. As I said in comments, the symbol is for represent the required to write braces (here {}) but I wanted to display it in math mode, so I think the appropiate symbol is backslash.
    – manooooh
    Nov 30 at 5:01








  • 3




    @manooooh - You wrote, "I think the appropriate symbol is backslash". That's not quite right, since setminus has math type "mathbin" ("binary operator"), whereas backslash has math type "mathord" ("ordinary"). In order to get the typographically proper amount of spacing around the backslash character, what you would need to write is mathbin{backslash}.
    – Mico
    Nov 30 at 6:36




















  • I was aware of setminus. As I said in comments, the symbol is for represent the required to write braces (here {}) but I wanted to display it in math mode, so I think the appropiate symbol is backslash.
    – manooooh
    Nov 30 at 5:01








  • 3




    @manooooh - You wrote, "I think the appropriate symbol is backslash". That's not quite right, since setminus has math type "mathbin" ("binary operator"), whereas backslash has math type "mathord" ("ordinary"). In order to get the typographically proper amount of spacing around the backslash character, what you would need to write is mathbin{backslash}.
    – Mico
    Nov 30 at 6:36


















I was aware of setminus. As I said in comments, the symbol is for represent the required to write braces (here {}) but I wanted to display it in math mode, so I think the appropiate symbol is backslash.
– manooooh
Nov 30 at 5:01






I was aware of setminus. As I said in comments, the symbol is for represent the required to write braces (here {}) but I wanted to display it in math mode, so I think the appropiate symbol is backslash.
– manooooh
Nov 30 at 5:01






3




3




@manooooh - You wrote, "I think the appropriate symbol is backslash". That's not quite right, since setminus has math type "mathbin" ("binary operator"), whereas backslash has math type "mathord" ("ordinary"). In order to get the typographically proper amount of spacing around the backslash character, what you would need to write is mathbin{backslash}.
– Mico
Nov 30 at 6:36






@manooooh - You wrote, "I think the appropriate symbol is backslash". That's not quite right, since setminus has math type "mathbin" ("binary operator"), whereas backslash has math type "mathord" ("ordinary"). In order to get the typographically proper amount of spacing around the backslash character, what you would need to write is mathbin{backslash}.
– Mico
Nov 30 at 6:36




















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