Gauss brackets with double vertical lines












4















I would like to have commands for left- and right gauss brackets which have a double vertical line, but otherwise behave exactly like lfloor and rfloor. In particular, they should come in various sizes and other things should stay unchanged.



I found two candidates, which are both not optimal, unfortunately:




  • llfloor and rrfloor in the package stmaryrd. Unfortunately they do not understand preceeding left and right commands. My impression is they are fixed size.


  • lFloor and rFloor in the package nath. They come in different sizes, but the problem is that including the package nath introduces automatic sizing behaviour of all symbols of parantheses-type. This might be interesting, but for the moment this change is just too radical for my taste.







symbols brackets stmaryrd nath







share|improve this question























  • Please do you have available a MWE for this problem? Thank you.

    – Sebastiano
    5 hours ago













  • tex.stackexchange.com/questions/140055/use-custom-brackets

    – JPi
    3 hours ago
















4















I would like to have commands for left- and right gauss brackets which have a double vertical line, but otherwise behave exactly like lfloor and rfloor. In particular, they should come in various sizes and other things should stay unchanged.



I found two candidates, which are both not optimal, unfortunately:




  • llfloor and rrfloor in the package stmaryrd. Unfortunately they do not understand preceeding left and right commands. My impression is they are fixed size.


  • lFloor and rFloor in the package nath. They come in different sizes, but the problem is that including the package nath introduces automatic sizing behaviour of all symbols of parantheses-type. This might be interesting, but for the moment this change is just too radical for my taste.







symbols brackets stmaryrd nath







share|improve this question























  • Please do you have available a MWE for this problem? Thank you.

    – Sebastiano
    5 hours ago













  • tex.stackexchange.com/questions/140055/use-custom-brackets

    – JPi
    3 hours ago














4












4








4


1






I would like to have commands for left- and right gauss brackets which have a double vertical line, but otherwise behave exactly like lfloor and rfloor. In particular, they should come in various sizes and other things should stay unchanged.



I found two candidates, which are both not optimal, unfortunately:




  • llfloor and rrfloor in the package stmaryrd. Unfortunately they do not understand preceeding left and right commands. My impression is they are fixed size.


  • lFloor and rFloor in the package nath. They come in different sizes, but the problem is that including the package nath introduces automatic sizing behaviour of all symbols of parantheses-type. This might be interesting, but for the moment this change is just too radical for my taste.







symbols brackets stmaryrd nath







share|improve this question














I would like to have commands for left- and right gauss brackets which have a double vertical line, but otherwise behave exactly like lfloor and rfloor. In particular, they should come in various sizes and other things should stay unchanged.



I found two candidates, which are both not optimal, unfortunately:




  • llfloor and rrfloor in the package stmaryrd. Unfortunately they do not understand preceeding left and right commands. My impression is they are fixed size.


  • lFloor and rFloor in the package nath. They come in different sizes, but the problem is that including the package nath introduces automatic sizing behaviour of all symbols of parantheses-type. This might be interesting, but for the moment this change is just too radical for my taste.







symbols brackets stmaryrd nath




symbols brackets stmaryrd nath






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked 5 hours ago









azimutazimut

396513




396513













  • Please do you have available a MWE for this problem? Thank you.

    – Sebastiano
    5 hours ago













  • tex.stackexchange.com/questions/140055/use-custom-brackets

    – JPi
    3 hours ago



















  • Please do you have available a MWE for this problem? Thank you.

    – Sebastiano
    5 hours ago













  • tex.stackexchange.com/questions/140055/use-custom-brackets

    – JPi
    3 hours ago

















Please do you have available a MWE for this problem? Thank you.

– Sebastiano
5 hours ago







Please do you have available a MWE for this problem? Thank you.

– Sebastiano
5 hours ago















tex.stackexchange.com/questions/140055/use-custom-brackets

– JPi
3 hours ago





tex.stackexchange.com/questions/140055/use-custom-brackets

– JPi
3 hours ago










2 Answers
2






active

oldest

votes


















3














Thanks to Werner for providing a solution for this similar question.



A rather quick fix using scalerel would be the following.



Conveniently, scalerel provides scaleleftright[<max width>]{<left obj>}{<stuff>}{<right obj>} (and a comparable stretchleftright) for scaling/stretching both <left obj> and <right obj> to the height of <stuff> (constrained, if required and optional, to a width of <max width>). Here's a quick example:





documentclass{article}

usepackage{scalerel, stmaryrd} % http://ctan.org/pkg/scalerel



newcommand{gaussbracket}[1]{stretchleftright{llfloor}{#1}{rrfloor}}



begin{document}

[ gaussbracket{displaystylesum_{i=1}^n i} ]

end{document}





share|improve this answer





















  • 1





    Very very good. I have really appreciated your code.

    – Sebastiano
    5 hours ago











  • Thanks, but it's not exactly what I wanted. I wanted a pair of commands, one for left and one for right bracket, which can be resized by big, Big, etc. Also, the scaled symbol does not look so good (too thick vertical line).

    – azimut
    3 hours ago





















2














An option if you don't want to use any packages other than amsmath would be to place two lfloors next to each other with a little negative space between:



enter image description here



This has the advantage of not thickening the horizontal portion of the delimiter. 



documentclass{article}

usepackage{amsmath}



newcommand{gaussbr}[1]{%

    leftlfloorhspace{-.33em}leftlfloor #1rightrfloorhspace{-.33em}rightrfloor%

    }



begin{document}



[

gaussbr{A}gaussbr{sum_{n=0}^{infty}a_n}

]



end{document}


Of course, you can adjust the amount of negative space to your liking.






share|improve this answer

























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    2 Answers
    2






    active

    oldest

    votes








    2 Answers
    2






    active

    oldest

    votes









    active

    oldest

    votes






    active

    oldest

    votes









    3














    Thanks to Werner for providing a solution for this similar question.



    A rather quick fix using scalerel would be the following.



    Conveniently, scalerel provides scaleleftright[<max width>]{<left obj>}{<stuff>}{<right obj>} (and a comparable stretchleftright) for scaling/stretching both <left obj> and <right obj> to the height of <stuff> (constrained, if required and optional, to a width of <max width>). Here's a quick example:





    documentclass{article}
    
usepackage{scalerel, stmaryrd} % http://ctan.org/pkg/scalerel
    

    
newcommand{gaussbracket}[1]{stretchleftright{llfloor}{#1}{rrfloor}}
    

    
begin{document}
    
[ gaussbracket{displaystylesum_{i=1}^n i} ]
    
end{document}





    share|improve this answer





















    • 1





      Very very good. I have really appreciated your code.

      – Sebastiano
      5 hours ago











    • Thanks, but it's not exactly what I wanted. I wanted a pair of commands, one for left and one for right bracket, which can be resized by big, Big, etc. Also, the scaled symbol does not look so good (too thick vertical line).

      – azimut
      3 hours ago


















    3














    Thanks to Werner for providing a solution for this similar question.



    A rather quick fix using scalerel would be the following.



    Conveniently, scalerel provides scaleleftright[<max width>]{<left obj>}{<stuff>}{<right obj>} (and a comparable stretchleftright) for scaling/stretching both <left obj> and <right obj> to the height of <stuff> (constrained, if required and optional, to a width of <max width>). Here's a quick example:





    documentclass{article}
    
usepackage{scalerel, stmaryrd} % http://ctan.org/pkg/scalerel
    

    
newcommand{gaussbracket}[1]{stretchleftright{llfloor}{#1}{rrfloor}}
    

    
begin{document}
    
[ gaussbracket{displaystylesum_{i=1}^n i} ]
    
end{document}





    share|improve this answer





















    • 1





      Very very good. I have really appreciated your code.

      – Sebastiano
      5 hours ago











    • Thanks, but it's not exactly what I wanted. I wanted a pair of commands, one for left and one for right bracket, which can be resized by big, Big, etc. Also, the scaled symbol does not look so good (too thick vertical line).

      – azimut
      3 hours ago
















    3












    3








    3







    Thanks to Werner for providing a solution for this similar question.



    A rather quick fix using scalerel would be the following.



    Conveniently, scalerel provides scaleleftright[<max width>]{<left obj>}{<stuff>}{<right obj>} (and a comparable stretchleftright) for scaling/stretching both <left obj> and <right obj> to the height of <stuff> (constrained, if required and optional, to a width of <max width>). Here's a quick example:





    documentclass{article}
    
usepackage{scalerel, stmaryrd} % http://ctan.org/pkg/scalerel
    

    
newcommand{gaussbracket}[1]{stretchleftright{llfloor}{#1}{rrfloor}}
    

    
begin{document}
    
[ gaussbracket{displaystylesum_{i=1}^n i} ]
    
end{document}





    share|improve this answer















    Thanks to Werner for providing a solution for this similar question.



    A rather quick fix using scalerel would be the following.



    Conveniently, scalerel provides scaleleftright[<max width>]{<left obj>}{<stuff>}{<right obj>} (and a comparable stretchleftright) for scaling/stretching both <left obj> and <right obj> to the height of <stuff> (constrained, if required and optional, to a width of <max width>). Here's a quick example:





    documentclass{article}
    
usepackage{scalerel, stmaryrd} % http://ctan.org/pkg/scalerel
    

    
newcommand{gaussbracket}[1]{stretchleftright{llfloor}{#1}{rrfloor}}
    

    
begin{document}
    
[ gaussbracket{displaystylesum_{i=1}^n i} ]
    
end{document}






    share|improve this answer














    share|improve this answer



    share|improve this answer








    edited 5 hours ago

























    answered 5 hours ago









    PeiffapPeiffap

    787




    787








    • 1





      Very very good. I have really appreciated your code.

      – Sebastiano
      5 hours ago











    • Thanks, but it's not exactly what I wanted. I wanted a pair of commands, one for left and one for right bracket, which can be resized by big, Big, etc. Also, the scaled symbol does not look so good (too thick vertical line).

      – azimut
      3 hours ago
















    • 1





      Very very good. I have really appreciated your code.

      – Sebastiano
      5 hours ago











    • Thanks, but it's not exactly what I wanted. I wanted a pair of commands, one for left and one for right bracket, which can be resized by big, Big, etc. Also, the scaled symbol does not look so good (too thick vertical line).

      – azimut
      3 hours ago










    1




    1





    Very very good. I have really appreciated your code.

    – Sebastiano
    5 hours ago





    Very very good. I have really appreciated your code.

    – Sebastiano
    5 hours ago













    Thanks, but it's not exactly what I wanted. I wanted a pair of commands, one for left and one for right bracket, which can be resized by big, Big, etc. Also, the scaled symbol does not look so good (too thick vertical line).

    – azimut
    3 hours ago







    Thanks, but it's not exactly what I wanted. I wanted a pair of commands, one for left and one for right bracket, which can be resized by big, Big, etc. Also, the scaled symbol does not look so good (too thick vertical line).

    – azimut
    3 hours ago













    2














    An option if you don't want to use any packages other than amsmath would be to place two lfloors next to each other with a little negative space between:



    enter image description here



    This has the advantage of not thickening the horizontal portion of the delimiter. 



    documentclass{article}
    
usepackage{amsmath}
    

    
newcommand{gaussbr}[1]{%
    
    leftlfloorhspace{-.33em}leftlfloor #1rightrfloorhspace{-.33em}rightrfloor%
    
    }
    

    
begin{document}
    

    
[
    
gaussbr{A}gaussbr{sum_{n=0}^{infty}a_n}
    
]
    

    
end{document}


    Of course, you can adjust the amount of negative space to your liking.






    share|improve this answer






























      2














      An option if you don't want to use any packages other than amsmath would be to place two lfloors next to each other with a little negative space between:



      enter image description here



      This has the advantage of not thickening the horizontal portion of the delimiter. 



      documentclass{article}
      
usepackage{amsmath}
      

      
newcommand{gaussbr}[1]{%
      
    leftlfloorhspace{-.33em}leftlfloor #1rightrfloorhspace{-.33em}rightrfloor%
      
    }
      

      
begin{document}
      

      
[
      
gaussbr{A}gaussbr{sum_{n=0}^{infty}a_n}
      
]
      

      
end{document}


      Of course, you can adjust the amount of negative space to your liking.






      share|improve this answer




























        2












        2








        2







        An option if you don't want to use any packages other than amsmath would be to place two lfloors next to each other with a little negative space between:



        enter image description here



        This has the advantage of not thickening the horizontal portion of the delimiter. 



        documentclass{article}
        
usepackage{amsmath}
        

        
newcommand{gaussbr}[1]{%
        
    leftlfloorhspace{-.33em}leftlfloor #1rightrfloorhspace{-.33em}rightrfloor%
        
    }
        

        
begin{document}
        

        
[
        
gaussbr{A}gaussbr{sum_{n=0}^{infty}a_n}
        
]
        

        
end{document}


        Of course, you can adjust the amount of negative space to your liking.






        share|improve this answer















        An option if you don't want to use any packages other than amsmath would be to place two lfloors next to each other with a little negative space between:



        enter image description here



        This has the advantage of not thickening the horizontal portion of the delimiter. 



        documentclass{article}
        
usepackage{amsmath}
        

        
newcommand{gaussbr}[1]{%
        
    leftlfloorhspace{-.33em}leftlfloor #1rightrfloorhspace{-.33em}rightrfloor%
        
    }
        

        
begin{document}
        

        
[
        
gaussbr{A}gaussbr{sum_{n=0}^{infty}a_n}
        
]
        

        
end{document}


        Of course, you can adjust the amount of negative space to your liking.







        share|improve this answer














        share|improve this answer



        share|improve this answer








        edited 1 hour ago

























        answered 1 hour ago









        Sandy GSandy G

        3,2671425




        3,2671425






























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