Fractions with characters that don't have descenders or ascenders












2















The default vertical spacing for fractions accommodates the possibility of a character with a descender or an ascender (or the possibility of subscripts/superscripts). This is, for the most part, the desirable functionality. For example, in the code below,



$$frac{g}{a}=frac{a}{c}=frac{a}{b}$$


nothing needs to be changed. However, there is occasion where an expression like the ones below



$$frac{a}{c}$$

$$frac{a}{b}$$

$$frac{b}{a}$$


occurs in isolation where a reduction in the vertical space on either side, or both, seems warranted to balance the fraction.




If I'm going on a final pass through a document, what would be the best approach to remove this vertical space that would be compatible with a change of font?







math-mode spacing







share|improve this question























  • Apart from don't: you write your own macro that typesets numerator and denominator inside boxes and measures it, then draw your own version of a fraction that only uses those sizes and no strut or similar.

    – Skillmon
    6 hours ago






  • 1





    See Why is [ ... ] preferable to $$ ... $$?

    – Werner
    5 hours ago











  • @Werner I excluded amsmath on purpose.

    – Robert Wolfe
    5 hours ago
















2















The default vertical spacing for fractions accommodates the possibility of a character with a descender or an ascender (or the possibility of subscripts/superscripts). This is, for the most part, the desirable functionality. For example, in the code below,



$$frac{g}{a}=frac{a}{c}=frac{a}{b}$$


nothing needs to be changed. However, there is occasion where an expression like the ones below



$$frac{a}{c}$$

$$frac{a}{b}$$

$$frac{b}{a}$$


occurs in isolation where a reduction in the vertical space on either side, or both, seems warranted to balance the fraction.




If I'm going on a final pass through a document, what would be the best approach to remove this vertical space that would be compatible with a change of font?







math-mode spacing







share|improve this question























  • Apart from don't: you write your own macro that typesets numerator and denominator inside boxes and measures it, then draw your own version of a fraction that only uses those sizes and no strut or similar.

    – Skillmon
    6 hours ago






  • 1





    See Why is [ ... ] preferable to $$ ... $$?

    – Werner
    5 hours ago











  • @Werner I excluded amsmath on purpose.

    – Robert Wolfe
    5 hours ago














2












2








2








The default vertical spacing for fractions accommodates the possibility of a character with a descender or an ascender (or the possibility of subscripts/superscripts). This is, for the most part, the desirable functionality. For example, in the code below,



$$frac{g}{a}=frac{a}{c}=frac{a}{b}$$


nothing needs to be changed. However, there is occasion where an expression like the ones below



$$frac{a}{c}$$

$$frac{a}{b}$$

$$frac{b}{a}$$


occurs in isolation where a reduction in the vertical space on either side, or both, seems warranted to balance the fraction.




If I'm going on a final pass through a document, what would be the best approach to remove this vertical space that would be compatible with a change of font?







math-mode spacing







share|improve this question














The default vertical spacing for fractions accommodates the possibility of a character with a descender or an ascender (or the possibility of subscripts/superscripts). This is, for the most part, the desirable functionality. For example, in the code below,



$$frac{g}{a}=frac{a}{c}=frac{a}{b}$$


nothing needs to be changed. However, there is occasion where an expression like the ones below



$$frac{a}{c}$$

$$frac{a}{b}$$

$$frac{b}{a}$$


occurs in isolation where a reduction in the vertical space on either side, or both, seems warranted to balance the fraction.




If I'm going on a final pass through a document, what would be the best approach to remove this vertical space that would be compatible with a change of font?







math-mode spacing




math-mode spacing






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked 6 hours ago









Robert WolfeRobert Wolfe

13610




13610













  • Apart from don't: you write your own macro that typesets numerator and denominator inside boxes and measures it, then draw your own version of a fraction that only uses those sizes and no strut or similar.

    – Skillmon
    6 hours ago






  • 1





    See Why is [ ... ] preferable to $$ ... $$?

    – Werner
    5 hours ago











  • @Werner I excluded amsmath on purpose.

    – Robert Wolfe
    5 hours ago



















  • Apart from don't: you write your own macro that typesets numerator and denominator inside boxes and measures it, then draw your own version of a fraction that only uses those sizes and no strut or similar.

    – Skillmon
    6 hours ago






  • 1





    See Why is [ ... ] preferable to $$ ... $$?

    – Werner
    5 hours ago











  • @Werner I excluded amsmath on purpose.

    – Robert Wolfe
    5 hours ago

















Apart from don't: you write your own macro that typesets numerator and denominator inside boxes and measures it, then draw your own version of a fraction that only uses those sizes and no strut or similar.

– Skillmon
6 hours ago





Apart from don't: you write your own macro that typesets numerator and denominator inside boxes and measures it, then draw your own version of a fraction that only uses those sizes and no strut or similar.

– Skillmon
6 hours ago




1




1





See Why is [ ... ] preferable to $$ ... $$?

– Werner
5 hours ago





See Why is [ ... ] preferable to $$ ... $$?

– Werner
5 hours ago













@Werner I excluded amsmath on purpose.

– Robert Wolfe
5 hours ago





@Werner I excluded amsmath on purpose.

– Robert Wolfe
5 hours ago










2 Answers
2






active

oldest

votes


















3














I'm not sure it's a good idea. Anyhow, here's an implementation that should only be used in displays (fractions in text style or lower are already adjusted).



documentclass{article}

usepackage{amsmath}



newcommand{afrac}[2]{%

  dfrac{adjustbot{#1}}

        {adjusttop{#2}}%

}



makeatletter

newcommand{adjustbot}[1]{%

  begingroup

  settodepthdimen@{$textstyle y$}%

  raisebox{dimexprdepth-dimen@}{$m@thtextstyle#1$}%

  endgroup

}

newcommand{adjusttop}[1]{%

  begingroup

  settoheightdimen@{$textstyle l$}%

  raisebox{dimexprdimen@-height}{$m@thtextstyle#1$}%

  endgroup

}

makeatother



begin{document}



[

frac{a}{b}afrac{a}{b}quad

frac{a}{c}afrac{a}{c}quad

frac{b}{a}afrac{b}{a}quad

frac{g}{a}afrac{g}{a}

]

end{document}


enter image description here






share|improve this answer































    1














    documentclass{article}
    
newcommand{myfrac}[2]
    
{frac{raisebox{-.4ex}{$#1$}}{raisebox{.4ex}{$#2$}}}
    
begin{document}
    
$$frac{p}{d}=myfrac{a}{c}$$
    
$$frac{p}{d}=myfrac{a}{b}$$
    
$$frac{p}{d}=myfrac{b}{a}$$
    
end{document}


    enter image description here






    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














      I'm not sure it's a good idea. Anyhow, here's an implementation that should only be used in displays (fractions in text style or lower are already adjusted).



      documentclass{article}
      
usepackage{amsmath}
      

      
newcommand{afrac}[2]{%
      
  dfrac{adjustbot{#1}}
      
        {adjusttop{#2}}%
      
}
      

      
makeatletter
      
newcommand{adjustbot}[1]{%
      
  begingroup
      
  settodepthdimen@{$textstyle y$}%
      
  raisebox{dimexprdepth-dimen@}{$m@thtextstyle#1$}%
      
  endgroup
      
}
      
newcommand{adjusttop}[1]{%
      
  begingroup
      
  settoheightdimen@{$textstyle l$}%
      
  raisebox{dimexprdimen@-height}{$m@thtextstyle#1$}%
      
  endgroup
      
}
      
makeatother
      

      
begin{document}
      

      
[
      
frac{a}{b}afrac{a}{b}quad
      
frac{a}{c}afrac{a}{c}quad
      
frac{b}{a}afrac{b}{a}quad
      
frac{g}{a}afrac{g}{a}
      
]
      
end{document}


      enter image description here






      share|improve this answer




























        3














        I'm not sure it's a good idea. Anyhow, here's an implementation that should only be used in displays (fractions in text style or lower are already adjusted).



        documentclass{article}
        
usepackage{amsmath}
        

        
newcommand{afrac}[2]{%
        
  dfrac{adjustbot{#1}}
        
        {adjusttop{#2}}%
        
}
        

        
makeatletter
        
newcommand{adjustbot}[1]{%
        
  begingroup
        
  settodepthdimen@{$textstyle y$}%
        
  raisebox{dimexprdepth-dimen@}{$m@thtextstyle#1$}%
        
  endgroup
        
}
        
newcommand{adjusttop}[1]{%
        
  begingroup
        
  settoheightdimen@{$textstyle l$}%
        
  raisebox{dimexprdimen@-height}{$m@thtextstyle#1$}%
        
  endgroup
        
}
        
makeatother
        

        
begin{document}
        

        
[
        
frac{a}{b}afrac{a}{b}quad
        
frac{a}{c}afrac{a}{c}quad
        
frac{b}{a}afrac{b}{a}quad
        
frac{g}{a}afrac{g}{a}
        
]
        
end{document}


        enter image description here






        share|improve this answer


























          3












          3








          3







          I'm not sure it's a good idea. Anyhow, here's an implementation that should only be used in displays (fractions in text style or lower are already adjusted).



          documentclass{article}
          
usepackage{amsmath}
          

          
newcommand{afrac}[2]{%
          
  dfrac{adjustbot{#1}}
          
        {adjusttop{#2}}%
          
}
          

          
makeatletter
          
newcommand{adjustbot}[1]{%
          
  begingroup
          
  settodepthdimen@{$textstyle y$}%
          
  raisebox{dimexprdepth-dimen@}{$m@thtextstyle#1$}%
          
  endgroup
          
}
          
newcommand{adjusttop}[1]{%
          
  begingroup
          
  settoheightdimen@{$textstyle l$}%
          
  raisebox{dimexprdimen@-height}{$m@thtextstyle#1$}%
          
  endgroup
          
}
          
makeatother
          

          
begin{document}
          

          
[
          
frac{a}{b}afrac{a}{b}quad
          
frac{a}{c}afrac{a}{c}quad
          
frac{b}{a}afrac{b}{a}quad
          
frac{g}{a}afrac{g}{a}
          
]
          
end{document}


          enter image description here






          share|improve this answer













          I'm not sure it's a good idea. Anyhow, here's an implementation that should only be used in displays (fractions in text style or lower are already adjusted).



          documentclass{article}
          
usepackage{amsmath}
          

          
newcommand{afrac}[2]{%
          
  dfrac{adjustbot{#1}}
          
        {adjusttop{#2}}%
          
}
          

          
makeatletter
          
newcommand{adjustbot}[1]{%
          
  begingroup
          
  settodepthdimen@{$textstyle y$}%
          
  raisebox{dimexprdepth-dimen@}{$m@thtextstyle#1$}%
          
  endgroup
          
}
          
newcommand{adjusttop}[1]{%
          
  begingroup
          
  settoheightdimen@{$textstyle l$}%
          
  raisebox{dimexprdimen@-height}{$m@thtextstyle#1$}%
          
  endgroup
          
}
          
makeatother
          

          
begin{document}
          

          
[
          
frac{a}{b}afrac{a}{b}quad
          
frac{a}{c}afrac{a}{c}quad
          
frac{b}{a}afrac{b}{a}quad
          
frac{g}{a}afrac{g}{a}
          
]
          
end{document}


          enter image description here







          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered 4 hours ago









          egregegreg

          714k8618963184




          714k8618963184























              1














              documentclass{article}
              
newcommand{myfrac}[2]
              
{frac{raisebox{-.4ex}{$#1$}}{raisebox{.4ex}{$#2$}}}
              
begin{document}
              
$$frac{p}{d}=myfrac{a}{c}$$
              
$$frac{p}{d}=myfrac{a}{b}$$
              
$$frac{p}{d}=myfrac{b}{a}$$
              
end{document}


              enter image description here






              share|improve this answer




























                1














                documentclass{article}
                
newcommand{myfrac}[2]
                
{frac{raisebox{-.4ex}{$#1$}}{raisebox{.4ex}{$#2$}}}
                
begin{document}
                
$$frac{p}{d}=myfrac{a}{c}$$
                
$$frac{p}{d}=myfrac{a}{b}$$
                
$$frac{p}{d}=myfrac{b}{a}$$
                
end{document}


                enter image description here






                share|improve this answer


























                  1












                  1








                  1







                  documentclass{article}
                  
newcommand{myfrac}[2]
                  
{frac{raisebox{-.4ex}{$#1$}}{raisebox{.4ex}{$#2$}}}
                  
begin{document}
                  
$$frac{p}{d}=myfrac{a}{c}$$
                  
$$frac{p}{d}=myfrac{a}{b}$$
                  
$$frac{p}{d}=myfrac{b}{a}$$
                  
end{document}


                  enter image description here






                  share|improve this answer













                  documentclass{article}
                  
newcommand{myfrac}[2]
                  
{frac{raisebox{-.4ex}{$#1$}}{raisebox{.4ex}{$#2$}}}
                  
begin{document}
                  
$$frac{p}{d}=myfrac{a}{c}$$
                  
$$frac{p}{d}=myfrac{a}{b}$$
                  
$$frac{p}{d}=myfrac{b}{a}$$
                  
end{document}


                  enter image description here







                  share|improve this answer












                  share|improve this answer



                  share|improve this answer










                  answered 5 hours ago









                  jfbujfbu

                  46.9k66149




                  46.9k66149






























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