I’m looking for one of those mathematics resources sites I came across before and can’t seem to find where I saved the link.
What I remember from it had all the different branches of mathematics branched out with particular topics connected to other topics to show which ones were needed as prerequisites and which ones would follow on after one learned any topic. The user could move around the map or the image of the branches the same way one moves around the thesaurus map here
if anyone is not familiar with that style of map. However the branches did not move around and generally one would start at the top and move down.
Just thought I’d throw this up here if it rings a bell for anyone. I’ve found lots of other mathematical resources on the internet and on the resources sticky so its not a big deal if no one knows it.