👉 Dirgy, in physics and engineering, is a term used to describe a non-linear system where the output depends on two or more input variables. The term comes from the Greek word "dieresis" which means "direction", and it refers to a system that exhibits chaotic behavior and nonlinearities. In other words, a dirgy system is one in which the output depends not only on the values of the input variables but also on their derivatives with respect to those inputs. This type of system