I have been studying maths for quite a few years now, but I still find it a struggle to remember various formulas/equations, especially when starting a new topic. I've been thinking about developing my own mnemonic system for math symbols to help me memorize equations easily.

I would need to relate various mathematical operators to something else that is easy to visualize. The bracketing of expressions is problematic, you would need to have a way of visualizing a collection of things that the operator acts on.

I think that having a mnemonic system for maths would help internalize the ideas and models within a domain. It's obviously still a work in progress!