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In the article Topologies et Faisceaux by Demazure, one can find the following arrows (well, it is not in the link, but in the book version):

photo of arrows

And, out of pure curiosity, I am wondering if it is possible to reproduce this effect in (La)TeX? I think this kind of hand-written arrows are quite fun to read. :)

I don't know if an MWE is needed; I have no clue how to produce this sort of things in TeX at present.

Thanks for any help or reference.

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    They are actually handwritten. From times when technology wasn't that advanced. – Manuel Oct 19 '16 at 8:24
  • Thanks for the response. And I want to know how to produce the hand-written arrows like that. :-D I think it would be fun to code such arrows out. :) – awllower Oct 19 '16 at 8:27
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    Maybe a task for a very rainy Sunday afternoon; some random variation of a path in Metapost. The simplest way is scanning and tracing a few of them. – egreg Oct 19 '16 at 9:47
  • The Teen Spirit (fts) font. See, for example, tex.stackexchange.com/questions/317190/… – Steven B. Segletes Oct 19 '16 at 10:29
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    Various options here: tex.stackexchange.com/q/39296/89098 – Ross Oct 19 '16 at 14:08
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Someone is bound to propose some tikz, but for the authentic hand drawn look, never forget the awesome power of ms paint:

enter image description here

\documentclass{article}

\usepackage{graphics}

\begin{document}

\[
\begin{array}{cccccc}
U_1&\raisebox{-.5\height}{\includegraphics{ra1}}&U_2&
\raisebox{-.5\height}{\includegraphics{ra2}}&U_3\\
\includegraphics{ua1}&&\includegraphics{ua2}&&\includegraphics{ua3}\\
S_1&&S_2&&S_3
\end{array}
\]
\end{document}
  • Although a nice Response, that is horrible! It hurt my eyes just to look at it... – Guilherme Zanotelli Oct 19 '16 at 9:29

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