👉 The term "protagorean" refers to a specific type of mathematical operation that involves finding the inverse of a function or matrix. It is often used in cryptography and computer science to solve problems related to encryption, such as RSA algorithm. The idea behind this operation is that it allows you to recover the original input from its output by performing an operation on the output with itself. This can be particularly useful for solving problems where one wants to find a key or secret that needs to be used in another