No spacing after Sigma?












6















There seems to be barely any spacing (if at all) after Sigma, making it hard to read. Is this normal? Is there any way around it?



 $ Sigma_{v in V} alpha $


Output:



enter image description here



Desired output:



enter image description here










share|improve this question




















  • 3





    Add your own horizontal space. See What commands are there for horizontal spacing?

    – Werner
    Dec 9 '18 at 17:07






  • 6





    why don't you use sum?

    – Ulrike Fischer
    Dec 9 '18 at 17:15






  • 3





    Sigma is a normal greek letter so has no spacing just as abc has no extra spacing, if you mean summation operator then use sum which is a different character and also specified as a math operator so has different spacing.

    – David Carlisle
    Dec 9 '18 at 17:25






  • 1





    Related: tex.stackexchange.com/questions/409380/…

    – egreg
    Dec 9 '18 at 19:03











  • there are spacing symbols defined. the one i use most is: , but others exist as well ...

    – der bender
    Dec 9 '18 at 19:58
















6















There seems to be barely any spacing (if at all) after Sigma, making it hard to read. Is this normal? Is there any way around it?



 $ Sigma_{v in V} alpha $


Output:



enter image description here



Desired output:



enter image description here










share|improve this question




















  • 3





    Add your own horizontal space. See What commands are there for horizontal spacing?

    – Werner
    Dec 9 '18 at 17:07






  • 6





    why don't you use sum?

    – Ulrike Fischer
    Dec 9 '18 at 17:15






  • 3





    Sigma is a normal greek letter so has no spacing just as abc has no extra spacing, if you mean summation operator then use sum which is a different character and also specified as a math operator so has different spacing.

    – David Carlisle
    Dec 9 '18 at 17:25






  • 1





    Related: tex.stackexchange.com/questions/409380/…

    – egreg
    Dec 9 '18 at 19:03











  • there are spacing symbols defined. the one i use most is: , but others exist as well ...

    – der bender
    Dec 9 '18 at 19:58














6












6








6








There seems to be barely any spacing (if at all) after Sigma, making it hard to read. Is this normal? Is there any way around it?



 $ Sigma_{v in V} alpha $


Output:



enter image description here



Desired output:



enter image description here










share|improve this question
















There seems to be barely any spacing (if at all) after Sigma, making it hard to read. Is this normal? Is there any way around it?



 $ Sigma_{v in V} alpha $


Output:



enter image description here



Desired output:



enter image description here







math-mode spacing symbols math-operators






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Dec 10 '18 at 18:23









Ari Brodsky

1,4031230




1,4031230










asked Dec 9 '18 at 17:03









SJ19SJ19

1453




1453








  • 3





    Add your own horizontal space. See What commands are there for horizontal spacing?

    – Werner
    Dec 9 '18 at 17:07






  • 6





    why don't you use sum?

    – Ulrike Fischer
    Dec 9 '18 at 17:15






  • 3





    Sigma is a normal greek letter so has no spacing just as abc has no extra spacing, if you mean summation operator then use sum which is a different character and also specified as a math operator so has different spacing.

    – David Carlisle
    Dec 9 '18 at 17:25






  • 1





    Related: tex.stackexchange.com/questions/409380/…

    – egreg
    Dec 9 '18 at 19:03











  • there are spacing symbols defined. the one i use most is: , but others exist as well ...

    – der bender
    Dec 9 '18 at 19:58














  • 3





    Add your own horizontal space. See What commands are there for horizontal spacing?

    – Werner
    Dec 9 '18 at 17:07






  • 6





    why don't you use sum?

    – Ulrike Fischer
    Dec 9 '18 at 17:15






  • 3





    Sigma is a normal greek letter so has no spacing just as abc has no extra spacing, if you mean summation operator then use sum which is a different character and also specified as a math operator so has different spacing.

    – David Carlisle
    Dec 9 '18 at 17:25






  • 1





    Related: tex.stackexchange.com/questions/409380/…

    – egreg
    Dec 9 '18 at 19:03











  • there are spacing symbols defined. the one i use most is: , but others exist as well ...

    – der bender
    Dec 9 '18 at 19:58








3




3





Add your own horizontal space. See What commands are there for horizontal spacing?

– Werner
Dec 9 '18 at 17:07





Add your own horizontal space. See What commands are there for horizontal spacing?

– Werner
Dec 9 '18 at 17:07




6




6





why don't you use sum?

– Ulrike Fischer
Dec 9 '18 at 17:15





why don't you use sum?

– Ulrike Fischer
Dec 9 '18 at 17:15




3




3





Sigma is a normal greek letter so has no spacing just as abc has no extra spacing, if you mean summation operator then use sum which is a different character and also specified as a math operator so has different spacing.

– David Carlisle
Dec 9 '18 at 17:25





Sigma is a normal greek letter so has no spacing just as abc has no extra spacing, if you mean summation operator then use sum which is a different character and also specified as a math operator so has different spacing.

– David Carlisle
Dec 9 '18 at 17:25




1




1





Related: tex.stackexchange.com/questions/409380/…

– egreg
Dec 9 '18 at 19:03





Related: tex.stackexchange.com/questions/409380/…

– egreg
Dec 9 '18 at 19:03













there are spacing symbols defined. the one i use most is: , but others exist as well ...

– der bender
Dec 9 '18 at 19:58





there are spacing symbols defined. the one i use most is: , but others exist as well ...

– der bender
Dec 9 '18 at 19:58










1 Answer
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15














You should use sum, not Sigma, to create a summation symbol. The sum symbol is slightly larger than Sigma when used in text style, and a whole lot larger when used in display style. In addition, the math type of sum is math-op ("math operator"), whereas the math type of Sigma is math-ord ("ordinary atom"); this strongly affects the amount of whitespace TeX inserts before and after the symbol.



enter image description here



documentclass{article}
begin{document}
$Sigma_{iin V} beta_i quad
sum_{iin V} beta_i quad
sumlimits_{iin V}beta_i quad
{displaystylesumnolimits_{iin V} beta_i} quad
displaystylesum_{iin V} beta_i$
end{document}





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    1 Answer
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    1 Answer
    1






    active

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    active

    oldest

    votes






    active

    oldest

    votes









    15














    You should use sum, not Sigma, to create a summation symbol. The sum symbol is slightly larger than Sigma when used in text style, and a whole lot larger when used in display style. In addition, the math type of sum is math-op ("math operator"), whereas the math type of Sigma is math-ord ("ordinary atom"); this strongly affects the amount of whitespace TeX inserts before and after the symbol.



    enter image description here



    documentclass{article}
    begin{document}
    $Sigma_{iin V} beta_i quad
    sum_{iin V} beta_i quad
    sumlimits_{iin V}beta_i quad
    {displaystylesumnolimits_{iin V} beta_i} quad
    displaystylesum_{iin V} beta_i$
    end{document}





    share|improve this answer




























      15














      You should use sum, not Sigma, to create a summation symbol. The sum symbol is slightly larger than Sigma when used in text style, and a whole lot larger when used in display style. In addition, the math type of sum is math-op ("math operator"), whereas the math type of Sigma is math-ord ("ordinary atom"); this strongly affects the amount of whitespace TeX inserts before and after the symbol.



      enter image description here



      documentclass{article}
      begin{document}
      $Sigma_{iin V} beta_i quad
      sum_{iin V} beta_i quad
      sumlimits_{iin V}beta_i quad
      {displaystylesumnolimits_{iin V} beta_i} quad
      displaystylesum_{iin V} beta_i$
      end{document}





      share|improve this answer


























        15












        15








        15







        You should use sum, not Sigma, to create a summation symbol. The sum symbol is slightly larger than Sigma when used in text style, and a whole lot larger when used in display style. In addition, the math type of sum is math-op ("math operator"), whereas the math type of Sigma is math-ord ("ordinary atom"); this strongly affects the amount of whitespace TeX inserts before and after the symbol.



        enter image description here



        documentclass{article}
        begin{document}
        $Sigma_{iin V} beta_i quad
        sum_{iin V} beta_i quad
        sumlimits_{iin V}beta_i quad
        {displaystylesumnolimits_{iin V} beta_i} quad
        displaystylesum_{iin V} beta_i$
        end{document}





        share|improve this answer













        You should use sum, not Sigma, to create a summation symbol. The sum symbol is slightly larger than Sigma when used in text style, and a whole lot larger when used in display style. In addition, the math type of sum is math-op ("math operator"), whereas the math type of Sigma is math-ord ("ordinary atom"); this strongly affects the amount of whitespace TeX inserts before and after the symbol.



        enter image description here



        documentclass{article}
        begin{document}
        $Sigma_{iin V} beta_i quad
        sum_{iin V} beta_i quad
        sumlimits_{iin V}beta_i quad
        {displaystylesumnolimits_{iin V} beta_i} quad
        displaystylesum_{iin V} beta_i$
        end{document}






        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Dec 9 '18 at 18:45









        MicoMico

        276k30377766




        276k30377766






























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