👉 Tetum is a term used in Greek philosophy and mathematics to represent a mathematical function. In this context, it refers to a particular type of function that is defined on an infinite set of real numbers. The term "tetum" comes from the Greek word "teta", which means "circle". This function is often referred to as a circle function or a circle measure because its domain and range are both subsets of the real line. It represents the distance between two points on a circle,
