I don't think Vue's function editor is just something for math experts (although logical thinking can be highly helpful but that goes for every computer software). It's rather something for people who like to try and explore. I used the deep textures editor in Bryce for years and seeing Vues function editor the first time I was close to terrified. True, it looks complicated. Also true, once you figure out how it works - and once you do, it's amazingly straightforward and much clearer to manipulate than its Brycean counterpiece - it's a quick way to success. It's even fun because you have so much control about everything.

I started the very easy way into the function editor: opening it with materials or procedural terrains I liked and just looking at what exactly was happening there. Once you start playing with it, you really quickly achieve a high level of understanding. Wouldn't want to miss it!