Various Tikz

Latex and Tikz allows to programmatically create beautiful documents, presentantions and graphics. Their documentation is clear but so extensive that one search the net for quick hacks, most often ending on Stack Exchange. Here’s some of the hints I found useful

• https://tex.stackexchange.com/questions/217953/tikz-objects-drawing
• https://tex.stackexchange.com/questions/415548/quotes-with-tikz
• https://tex.stackexchange.com/questions/63560/how-to-use-x-coordinate-of-a-point-and-y-coordinate-of-other-point#63562