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I am trying to export notebook in PDF but these formulas below always automatically converts to raw input form such as $a/b$ instead of $\frac{a}{b}$. So it doesn't look nice.
There are many other fractions but all are OK except these long fractions. I have tried a lot of methods from old posts but haven't found anything similar and works for me.

I set these formulas with Bold and font 20. So how to export theses as $\frac{a}{b}$ instead of $a/b$? 

iL -> ((-1 + D1 + D2) Vin)/(2 ((-1 + D1 + D2)^2 R2 + 
       2 (-1 + D1 + D2) D3 R2 + D3^2 (R1 + R2))) ;
V1 -> -(((-1 + D1 + D2) D3 R1 Vin)/((-1 + D1 + D2)^2 R2 + 
       2 (-1 + D1 + D2) D3 R2 + D3^2 (R1 + R2)));
V2 -> ((-1 + D1 + D2) (-1 + D1 + D2 + 
       D3) R2 Vin)/((-1 + D1 + D2)^2 R2 + 2 (-1 + D1 + D2) D3 R2 + 
     D3^2 (R1 + R2));
VCF1 -> -(((-1 + D1 + D2 + D3) ((-1 + D1 + D2) R2 + 
         D3 (R1 + R2)) Vin)/((-1 + D1 + D2)^2 R2 + 
       2 (-1 + D1 + D2) D3 R2 + D3^2 (R1 + R2)));
VCF2 -> -((D3 ((-1 + D1 + D2) R2 + 
         D3 (R1 + R2)) Vin)/((-1 + D1 + D2)^2 R2 + 
       2 (-1 + D1 + D2) D3 R2 + D3^2 (R1 + R2)));
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  • $\begingroup$ If you are writing using LaTeX, you can use TeXForm[put expression here], copy, paste in the TeX-document and when you convert it to pdf it has the form that you want. $\endgroup$
    – user49048
    Commented Mar 25, 2018 at 23:59
  • $\begingroup$ I don't use LaTex in this notebook, just press Ctrl + / and fill out the formula. $\endgroup$
    – emnha
    Commented Mar 26, 2018 at 0:02
  • $\begingroup$ Not in this formula. I meant if you want to use LaTeX to produce the pdf-file you want. $\endgroup$
    – user49048
    Commented Mar 26, 2018 at 0:03
  • $\begingroup$ Yes, do you have any idea how to make those formulas above display $\frac{a}{b}$ in PDF? $\endgroup$
    – emnha
    Commented Mar 26, 2018 at 0:05
  • $\begingroup$ Give me a second. I will post an answer. $\endgroup$
    – user49048
    Commented Mar 26, 2018 at 0:05

1 Answer 1

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If you take for example the first expression and put in Mathematica 

TeXForm[((-1 + D1 + D2) Vin)/(2 ((-1 + D1 + D2)^2 R2 + 
      2 (-1 + D1 + D2) D3 R2 + D3^2 (R1 + R2)))]

The output is

\frac{\text{Vin} (\text{D1}+\text{D2}-1)}{2 \left(2 \text{D3} \text{R2} (\text{D1}+\text{D2}-1)+\text{R2} (\text{D1}+\text{D2}-1)^2+\text{D3}^2 (\text{R1}+\text{R2})\right)}

And the pdf-file looks like Result

I hope that it is what you wanted.

Cheers!!!

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  • $\begingroup$ Thanks. But I only want to export the formula not including input like TeXForm[]. How to make the formula display as input? $\endgroup$
    – emnha
    Commented Mar 26, 2018 at 0:15
  • $\begingroup$ Sorry, I just saw that. If you copy the output of the TeXForm command, you will only export the formula, unless I don't understand what you want to do. $\endgroup$
    – user49048
    Commented Mar 26, 2018 at 0:58
  • $\begingroup$ Well, I tried but PDF file the formula is clutter like output above and this link: imgur.com/KpmRHwC $\endgroup$
    – emnha
    Commented Mar 26, 2018 at 2:45
  • $\begingroup$ And if you take that expression and compile it into a LaTeX file it should give you a nice looking fraction. I mean all the thing with the frac, etc etc $\endgroup$
    – user49048
    Commented Mar 26, 2018 at 2:48
  • $\begingroup$ But I need to export PDF file because these formulas is in a big file. $\endgroup$
    – emnha
    Commented Mar 26, 2018 at 2:53

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