[racket] [->] How to render math formulas with LaTeX under Scribble [solved]

Hi Jens Axel:

Really thank you very much.

It work exactly as you said.
Now I applied racket-poppler under scribble/manual with the following code, as a test:

#lang scribble/manual
@(require racket-poppler/render-tex pict)
@(latex-path 
 (case (system-type)
   [(macosx) "/usr/local/texlive/2013/bin/universal-darwin/pdflatex"]
   [(unix)   "pdflatex"] 
   [(windows) "c:/Archivos de programa/MiKTeX 2.9/miktex/bin/pdflatex.exe"])) ; personalized
@title{Beautiful: @(latex->pict "$e^{i \\pi}=-1$") }
Now we have just to learn how to scale the equation @(latex->pict "$e^{i \\pi}=-1$") to the right font size. Thank you very much Jens Axel Soegaard.

And worked just fine.

Thank you again for all your support, and by the way, congratulations for your number theory and linear algebra functions at the math library.

Sincerely, Enrique

P.S. It would be of great value, to be able to add latex functions to the plot library. Thanks.
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