This work is self-created, the source code is given below. However, seeing as it's obviously a derivative work, I'll respect the original copyright (original creator: User:Dysprosia), which is reprinted below. (As far as I'm concerned, I'm happy for this to go into the public domain — legal experts may wrangle appropriately.)
It was created with the latex source below and pdflatex. I then opened it with epdfview, found its window id with xwininfo -children, took a screenshot of it with ImageMagick's import -window id euler.png, cropped the resulting euler.png with the GIMP, and here we are! (A kludge, yes, but I couldn't figure out how to get a high resolution image with convert euler.pdf euler.png).
Here's the latex source:
\documentclass{article}\usepackage{euler}\begin{document}\[ AMS\ Euler\]\[\int_0^39x^2+2x +4\, dx =3x^3+ x^2+4x + C \Big\rbrack_0^3=102\]\[ e^{x+iy} = e^x(\cos y + i\sin y)\]\[ x =\frac{-b \pm\sqrt{b^2-4ac}}{2a}\]\end{document}
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This work is self-created, the source code is given below. However, seeing as it's obviously a derivative work, I'll respect the original copyright (original creator: User:Dysprosia), which is reprinted below. As far as I'm concerned, I'm happy for th
Aquest fitxer conté informació addicional, probablement afegida per la càmera digital o l'escàner utilitzat per a crear-lo o digitalitzar-lo. Si s'ha modificat posteriorment, alguns detalls poden no reflectir les dades reals del fitxer modificat.