Awakening the Analogue Computer: Rubel’s Extended Analog Computer Workshop

Abstract

Shannon's General Purpose Analog Computer (GPAC) was unable to directly solve many problems that Lee A. Rubel believed were critical to implement the functions of the human brain. In response Rubel defined the Extended Analog Computer (EAC) in 1993, which was able to directly compute partial differential equations, solve the inverse of functions and implement spatial continuity, among other operations.