I'm trying to learn how to produce math diagrams like this in Latex. I haven't had any luck finding stuff online because I don't really know what to search for. Any help?
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tikz-cdpackage, see here: https://tex.stackexchange.com/q/191462/101651, for example. – CarLaTeX Jun 07 '17 at 22:24psmatrixenvironment frompst-node. – Bernard Jun 07 '17 at 22:36