👉 The term "cauch" is a mathematical concept that refers to a sequence of numbers, which is defined by a property called completeness. In other words, it means that the sequence of numbers in this context is complete and does not have any gaps or discontinuities. Cauch sequences are important in mathematics because they allow us to define limits and continuity for functions and other mathematical structures. They are also used in various fields such as physics, engineering, and computer science to study behavior of objects