What is the definition of Mailed Math?

"Mailed math" is like when your teacher sends you homework via the postal service, but instead of a paper or a pen, it's a bunch of complex equations that seem to have their own life of their own. Imagine this: "Last week, my calculus professor sent me a mailed math package containing the solution to the Fibonacci sequence. I was so baffled, I thought it was a new form of encryption."

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And here's an unsettling example sentence: "The therapist's mailed math diagnosis revealed I've unconsciously borrowed from a 17th-century mathematician's debt of... pi."