What is the correct way to typeset a vector when there is subscript or superscript?












1















Consider this MWE:



documentclass{article}



begin{document}



[vec{v}_{12345}^{12345678}]



[overrightarrow{P_{12345}P_{12345}^{12345678}}]



end{document}


MWE output



As you can see, vec is designed to typeset a vector with an arrow above the argument.



However, when we do not have a unary symbol to represent a vector (e.g. the difference between the coordinates of two points) then we can use overrightarrow. But this notation has two problems:




  1. When we are working with long chain of numbers overrightarrow collides with it, as shown in the example.

  2. And I think the most important: it is not consistent with vec. Why? Because vec stops the arrow before the subscript/superscript, but overrightarrow continues the arrow to the end regardless of the existence or not of subscript/superscript.


Remember that we are writing vectors, no matter the length of the text that represents the vector.



What I want



With your huge help, I would like to write the following:



Example of what I want



Example 2 of what I want



Example 3 of what I want



Thanks!!






arrows subscripts superscripts vector







share|improve this question




















  • 1





    You can do that e.g. with [overrightarrow{P_{12345}P}!_{12345}^{,12345678}] but I promise you that in a few years you will find this notation awkward.

    – marmot
    4 hours ago











  • @marmot I am not a mathematician but a student of ingeering, so the conventions are our thing. :P

    – manooooh
    4 hours ago






  • 1





    it's best to avoid the over-arrow notation, especially you need it for anything more than x

    – David Carlisle
    4 hours ago






  • 1





    Then see this comment ... ;-)

    – marmot
    4 hours ago
















1















Consider this MWE:



documentclass{article}



begin{document}



[vec{v}_{12345}^{12345678}]



[overrightarrow{P_{12345}P_{12345}^{12345678}}]



end{document}


MWE output



As you can see, vec is designed to typeset a vector with an arrow above the argument.



However, when we do not have a unary symbol to represent a vector (e.g. the difference between the coordinates of two points) then we can use overrightarrow. But this notation has two problems:




  1. When we are working with long chain of numbers overrightarrow collides with it, as shown in the example.

  2. And I think the most important: it is not consistent with vec. Why? Because vec stops the arrow before the subscript/superscript, but overrightarrow continues the arrow to the end regardless of the existence or not of subscript/superscript.


Remember that we are writing vectors, no matter the length of the text that represents the vector.



What I want



With your huge help, I would like to write the following:



Example of what I want



Example 2 of what I want



Example 3 of what I want



Thanks!!






arrows subscripts superscripts vector







share|improve this question




















  • 1





    You can do that e.g. with [overrightarrow{P_{12345}P}!_{12345}^{,12345678}] but I promise you that in a few years you will find this notation awkward.

    – marmot
    4 hours ago











  • @marmot I am not a mathematician but a student of ingeering, so the conventions are our thing. :P

    – manooooh
    4 hours ago






  • 1





    it's best to avoid the over-arrow notation, especially you need it for anything more than x

    – David Carlisle
    4 hours ago






  • 1





    Then see this comment ... ;-)

    – marmot
    4 hours ago














1












1








1








Consider this MWE:



documentclass{article}



begin{document}



[vec{v}_{12345}^{12345678}]



[overrightarrow{P_{12345}P_{12345}^{12345678}}]



end{document}


MWE output



As you can see, vec is designed to typeset a vector with an arrow above the argument.



However, when we do not have a unary symbol to represent a vector (e.g. the difference between the coordinates of two points) then we can use overrightarrow. But this notation has two problems:




  1. When we are working with long chain of numbers overrightarrow collides with it, as shown in the example.

  2. And I think the most important: it is not consistent with vec. Why? Because vec stops the arrow before the subscript/superscript, but overrightarrow continues the arrow to the end regardless of the existence or not of subscript/superscript.


Remember that we are writing vectors, no matter the length of the text that represents the vector.



What I want



With your huge help, I would like to write the following:



Example of what I want



Example 2 of what I want



Example 3 of what I want



Thanks!!






arrows subscripts superscripts vector







share|improve this question
















Consider this MWE:



documentclass{article}



begin{document}



[vec{v}_{12345}^{12345678}]



[overrightarrow{P_{12345}P_{12345}^{12345678}}]



end{document}


MWE output



As you can see, vec is designed to typeset a vector with an arrow above the argument.



However, when we do not have a unary symbol to represent a vector (e.g. the difference between the coordinates of two points) then we can use overrightarrow. But this notation has two problems:




  1. When we are working with long chain of numbers overrightarrow collides with it, as shown in the example.

  2. And I think the most important: it is not consistent with vec. Why? Because vec stops the arrow before the subscript/superscript, but overrightarrow continues the arrow to the end regardless of the existence or not of subscript/superscript.


Remember that we are writing vectors, no matter the length of the text that represents the vector.



What I want



With your huge help, I would like to write the following:



Example of what I want



Example 2 of what I want



Example 3 of what I want



Thanks!!






arrows subscripts superscripts vector




arrows subscripts superscripts vector






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited 4 hours ago







manooooh

















asked 4 hours ago









manoooohmanooooh

1,1751517




1,1751517








  • 1





    You can do that e.g. with [overrightarrow{P_{12345}P}!_{12345}^{,12345678}] but I promise you that in a few years you will find this notation awkward.

    – marmot
    4 hours ago











  • @marmot I am not a mathematician but a student of ingeering, so the conventions are our thing. :P

    – manooooh
    4 hours ago






  • 1





    it's best to avoid the over-arrow notation, especially you need it for anything more than x

    – David Carlisle
    4 hours ago






  • 1





    Then see this comment ... ;-)

    – marmot
    4 hours ago














  • 1





    You can do that e.g. with [overrightarrow{P_{12345}P}!_{12345}^{,12345678}] but I promise you that in a few years you will find this notation awkward.

    – marmot
    4 hours ago











  • @marmot I am not a mathematician but a student of ingeering, so the conventions are our thing. :P

    – manooooh
    4 hours ago






  • 1





    it's best to avoid the over-arrow notation, especially you need it for anything more than x

    – David Carlisle
    4 hours ago






  • 1





    Then see this comment ... ;-)

    – marmot
    4 hours ago








1




1





You can do that e.g. with [overrightarrow{P_{12345}P}!_{12345}^{,12345678}] but I promise you that in a few years you will find this notation awkward.

– marmot
4 hours ago





You can do that e.g. with [overrightarrow{P_{12345}P}!_{12345}^{,12345678}] but I promise you that in a few years you will find this notation awkward.

– marmot
4 hours ago













@marmot I am not a mathematician but a student of ingeering, so the conventions are our thing. :P

– manooooh
4 hours ago





@marmot I am not a mathematician but a student of ingeering, so the conventions are our thing. :P

– manooooh
4 hours ago




1




1





it's best to avoid the over-arrow notation, especially you need it for anything more than x

– David Carlisle
4 hours ago





it's best to avoid the over-arrow notation, especially you need it for anything more than x

– David Carlisle
4 hours ago




1




1





Then see this comment ... ;-)

– marmot
4 hours ago





Then see this comment ... ;-)

– marmot
4 hours ago










1 Answer
1






active

oldest

votes


















1














This seems a really confusing (and ugly) convention, but..



enter image description here



documentclass{article}



begin{document}



sbox0{$P$}

[overrightarrow{strut P_{12345}kernwd0}kern-wd0P_{12345}^{12345678}]



end{document}





share|improve this answer
























  • Thanks! The original overrightarrow stops the arrow just after the last P, and your solution stops it at the middle. How can we stop the arrow a little more to the right?

    – manooooh
    4 hours ago






  • 1





    @manooooh middle? it goes to the right edge (bar the sidebearing on the arrowhead) but use kern1.1wd0}kern-1.1wd0 if you prefer (or any other factor)

    – David Carlisle
    4 hours ago














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1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









1














This seems a really confusing (and ugly) convention, but..



enter image description here



documentclass{article}



begin{document}



sbox0{$P$}

[overrightarrow{strut P_{12345}kernwd0}kern-wd0P_{12345}^{12345678}]



end{document}





share|improve this answer
























  • Thanks! The original overrightarrow stops the arrow just after the last P, and your solution stops it at the middle. How can we stop the arrow a little more to the right?

    – manooooh
    4 hours ago






  • 1





    @manooooh middle? it goes to the right edge (bar the sidebearing on the arrowhead) but use kern1.1wd0}kern-1.1wd0 if you prefer (or any other factor)

    – David Carlisle
    4 hours ago


















1














This seems a really confusing (and ugly) convention, but..



enter image description here



documentclass{article}



begin{document}



sbox0{$P$}

[overrightarrow{strut P_{12345}kernwd0}kern-wd0P_{12345}^{12345678}]



end{document}





share|improve this answer
























  • Thanks! The original overrightarrow stops the arrow just after the last P, and your solution stops it at the middle. How can we stop the arrow a little more to the right?

    – manooooh
    4 hours ago






  • 1





    @manooooh middle? it goes to the right edge (bar the sidebearing on the arrowhead) but use kern1.1wd0}kern-1.1wd0 if you prefer (or any other factor)

    – David Carlisle
    4 hours ago
















1












1








1







This seems a really confusing (and ugly) convention, but..



enter image description here



documentclass{article}



begin{document}



sbox0{$P$}

[overrightarrow{strut P_{12345}kernwd0}kern-wd0P_{12345}^{12345678}]



end{document}





share|improve this answer













This seems a really confusing (and ugly) convention, but..



enter image description here



documentclass{article}



begin{document}



sbox0{$P$}

[overrightarrow{strut P_{12345}kernwd0}kern-wd0P_{12345}^{12345678}]



end{document}






share|improve this answer












share|improve this answer



share|improve this answer










answered 4 hours ago









David CarlisleDavid Carlisle

497k4111441890




497k4111441890













  • Thanks! The original overrightarrow stops the arrow just after the last P, and your solution stops it at the middle. How can we stop the arrow a little more to the right?

    – manooooh
    4 hours ago






  • 1





    @manooooh middle? it goes to the right edge (bar the sidebearing on the arrowhead) but use kern1.1wd0}kern-1.1wd0 if you prefer (or any other factor)

    – David Carlisle
    4 hours ago





















  • Thanks! The original overrightarrow stops the arrow just after the last P, and your solution stops it at the middle. How can we stop the arrow a little more to the right?

    – manooooh
    4 hours ago






  • 1





    @manooooh middle? it goes to the right edge (bar the sidebearing on the arrowhead) but use kern1.1wd0}kern-1.1wd0 if you prefer (or any other factor)

    – David Carlisle
    4 hours ago



















Thanks! The original overrightarrow stops the arrow just after the last P, and your solution stops it at the middle. How can we stop the arrow a little more to the right?

– manooooh
4 hours ago





Thanks! The original overrightarrow stops the arrow just after the last P, and your solution stops it at the middle. How can we stop the arrow a little more to the right?

– manooooh
4 hours ago




1




1





@manooooh middle? it goes to the right edge (bar the sidebearing on the arrowhead) but use kern1.1wd0}kern-1.1wd0 if you prefer (or any other factor)

– David Carlisle
4 hours ago







@manooooh middle? it goes to the right edge (bar the sidebearing on the arrowhead) but use kern1.1wd0}kern-1.1wd0 if you prefer (or any other factor)

– David Carlisle
4 hours ago




















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