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Shrink exponential fraction argument

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1

Since the argument becomes too small when using frac, is there an alternative way to reduce the size of the exp argument?

 documentclassarticle
 usepackage[T1]fontenc
 usepackagelmodern
 usepackageamsmath,amssymb,amsfonts,systeme 
 begindocument

 $$eta = A exp^-dfracE_aRT$$

 enddocument

math-mode amsmath fractions

share|improve this question

asked 8 hours ago

user3204810user3204810

48429

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  it is very rare to need dfrac rather than frac and certainly not in an exponent
  
  – David Carlisle
  7 hours ago
  

  
  
  
  

add a comment | 

1

Since the argument becomes too small when using frac, is there an alternative way to reduce the size of the exp argument?

 documentclassarticle
 usepackage[T1]fontenc
 usepackagelmodern
 usepackageamsmath,amssymb,amsfonts,systeme 
 begindocument

 $$eta = A exp^-dfracE_aRT$$

 enddocument

math-mode amsmath fractions

share|improve this question

asked 8 hours ago

user3204810user3204810

48429

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  it is very rare to need dfrac rather than frac and certainly not in an exponent
  
  – David Carlisle
  7 hours ago
  

  
  
  
  

add a comment | 

Since the argument becomes too small when using frac, is there an alternative way to reduce the size of the exp argument?

 documentclassarticle
 usepackage[T1]fontenc
 usepackagelmodern
 usepackageamsmath,amssymb,amsfonts,systeme 
 begindocument

 $$eta = A exp^-dfracE_aRT$$

 enddocument

math-mode amsmath fractions

share|improve this question

asked 8 hours ago

user3204810user3204810

48429

 documentclassarticle
 usepackage[T1]fontenc
 usepackagelmodern
 usepackageamsmath,amssymb,amsfonts,systeme 
 begindocument

 $$eta = A exp^-dfracE_aRT$$

 enddocument

share|improve this question

asked 8 hours ago

user3204810user3204810

48429

share|improve this question

asked 8 hours ago

user3204810user3204810

48429

asked 8 hours ago

user3204810user3204810

48429

asked 8 hours ago

user3204810user3204810

48429

2 Answers
2

active

oldest

votes

4

You asked,

is there an alternative way to reduce the size of the exp argument?

If one uses exp notation, one should not raise the argument to superscript height. Instead, simply encase the argument in round parentheses, square brackets, or whatever fence symbols are most suitable to the task.

Separately, to avoid having to display fractional expression in superscript position, do consider using so-called inline-fraction notation. E.g., instead of writing e^fracuv, write e^u/v -- or exp(u/v).

documentclassarticle
begindocument
[
eta = e^-E_a/RT = A exp(-E_a/RT)
]
enddocument

share|improve this answer

answered 7 hours ago

MicoMico

293k32402791

add a comment | 

3

First, don't use $$ .. $$ for displayed math, use [ .. ] instead. Second, you can make the fraction in the exponent larder than frac in two ways; either expand -E_a/RT or use normal size of frac by any of several methods, I here used mbox. tfrac will also do the same but is easier.

documentclassarticle
usepackage[T1]fontenc
usepackagelmodern
usepackageamsmath,amssymb,amsfonts,systeme 
begindocument

beginalign*
eta &= A exp^-E_a/RT \
eta &= A exp^mbox$-fracE_aRT$ \
eta &= A exp^-tfracE_aRT \
eta &= A exp^-fracE_aRT
endalign* 

enddocument

share|improve this answer

edited 7 hours ago

answered 8 hours ago

AboAmmarAboAmmar

35.6k32985

add a comment | 

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4

You asked,

is there an alternative way to reduce the size of the exp argument?

If one uses exp notation, one should not raise the argument to superscript height. Instead, simply encase the argument in round parentheses, square brackets, or whatever fence symbols are most suitable to the task.

Separately, to avoid having to display fractional expression in superscript position, do consider using so-called inline-fraction notation. E.g., instead of writing e^fracuv, write e^u/v -- or exp(u/v).

documentclassarticle
begindocument
[
eta = e^-E_a/RT = A exp(-E_a/RT)
]
enddocument

share|improve this answer

answered 7 hours ago

MicoMico

293k32402791

add a comment | 

4

You asked,

is there an alternative way to reduce the size of the exp argument?

If one uses exp notation, one should not raise the argument to superscript height. Instead, simply encase the argument in round parentheses, square brackets, or whatever fence symbols are most suitable to the task.

Separately, to avoid having to display fractional expression in superscript position, do consider using so-called inline-fraction notation. E.g., instead of writing e^fracuv, write e^u/v -- or exp(u/v).

documentclassarticle
begindocument
[
eta = e^-E_a/RT = A exp(-E_a/RT)
]
enddocument

share|improve this answer

answered 7 hours ago

MicoMico

293k32402791

add a comment | 

You asked,

is there an alternative way to reduce the size of the exp argument?

If one uses exp notation, one should not raise the argument to superscript height. Instead, simply encase the argument in round parentheses, square brackets, or whatever fence symbols are most suitable to the task.

Separately, to avoid having to display fractional expression in superscript position, do consider using so-called inline-fraction notation. E.g., instead of writing e^fracuv, write e^u/v -- or exp(u/v).

documentclassarticle
begindocument
[
eta = e^-E_a/RT = A exp(-E_a/RT)
]
enddocument

share|improve this answer

answered 7 hours ago

MicoMico

293k32402791

documentclassarticle
begindocument
[
eta = e^-E_a/RT = A exp(-E_a/RT)
]
enddocument

share|improve this answer

answered 7 hours ago

MicoMico

293k32402791

answered 7 hours ago

MicoMico

293k32402791

answered 7 hours ago

MicoMico

293k32402791

3

First, don't use $$ .. $$ for displayed math, use [ .. ] instead. Second, you can make the fraction in the exponent larder than frac in two ways; either expand -E_a/RT or use normal size of frac by any of several methods, I here used mbox. tfrac will also do the same but is easier.

documentclassarticle
usepackage[T1]fontenc
usepackagelmodern
usepackageamsmath,amssymb,amsfonts,systeme 
begindocument

beginalign*
eta &= A exp^-E_a/RT \
eta &= A exp^mbox$-fracE_aRT$ \
eta &= A exp^-tfracE_aRT \
eta &= A exp^-fracE_aRT
endalign* 

enddocument

share|improve this answer

edited 7 hours ago

answered 8 hours ago

AboAmmarAboAmmar

35.6k32985

add a comment | 

3

First, don't use $$ .. $$ for displayed math, use [ .. ] instead. Second, you can make the fraction in the exponent larder than frac in two ways; either expand -E_a/RT or use normal size of frac by any of several methods, I here used mbox. tfrac will also do the same but is easier.

documentclassarticle
usepackage[T1]fontenc
usepackagelmodern
usepackageamsmath,amssymb,amsfonts,systeme 
begindocument

beginalign*
eta &= A exp^-E_a/RT \
eta &= A exp^mbox$-fracE_aRT$ \
eta &= A exp^-tfracE_aRT \
eta &= A exp^-fracE_aRT
endalign* 

enddocument

share|improve this answer

edited 7 hours ago

answered 8 hours ago

AboAmmarAboAmmar

35.6k32985

add a comment | 

First, don't use $$ .. $$ for displayed math, use [ .. ] instead. Second, you can make the fraction in the exponent larder than frac in two ways; either expand -E_a/RT or use normal size of frac by any of several methods, I here used mbox. tfrac will also do the same but is easier.

documentclassarticle
usepackage[T1]fontenc
usepackagelmodern
usepackageamsmath,amssymb,amsfonts,systeme 
begindocument

beginalign*
eta &= A exp^-E_a/RT \
eta &= A exp^mbox$-fracE_aRT$ \
eta &= A exp^-tfracE_aRT \
eta &= A exp^-fracE_aRT
endalign* 

enddocument

share|improve this answer

edited 7 hours ago

answered 8 hours ago

AboAmmarAboAmmar

35.6k32985

documentclassarticle
usepackage[T1]fontenc
usepackagelmodern
usepackageamsmath,amssymb,amsfonts,systeme 
begindocument

beginalign*
eta &= A exp^-E_a/RT \
eta &= A exp^mbox$-fracE_aRT$ \
eta &= A exp^-tfracE_aRT \
eta &= A exp^-fracE_aRT
endalign* 

enddocument

share|improve this answer

edited 7 hours ago

answered 8 hours ago

AboAmmarAboAmmar

35.6k32985

answered 8 hours ago

AboAmmarAboAmmar

35.6k32985

answered 8 hours ago

AboAmmarAboAmmar

35.6k32985