It's really annoying when you do the maths equivalent of Stack Overflow copy-pasting. Often I'll see some maths equation in a paper or blog post or whatever th

It's really annoying when you do the maths equivalent of Stack Overflow copy-pasting. Often I'll see some maths equation in a paper or blog post or whatever that I want to use in software, but I don't understand the notation and so I can't use it without spending god knows how long learning all the context first.