Mathias Rust Square was jokingly referred to by Muscovites as Sheremetyevo-3 (Sheremetyevo-1 and -2 being the two terminals at Moscow's main international airport). At the end of 1987, the police radio code used by law enforcement officers in Moscow was allegedly updated to include a code for an aircraft landing. Shortly after the incident, SubLogic, the original publishers of the "Flight Simulator" franchise, issued a scenery disk that expanded the original program's coverage area to include the Eastern Bloc. A challenge in the expansion pack was to land in Red Square as Rust had just done. Following the 20th anniversary of his
S-plane for frequency response, but decay effects as well. For instance, a damped sine wave can be modeled correctly using Laplace transforms. A function in the s-plane can be translated back into a function of time using the inverse Laplace transform where the real number formula_13 is chosen so the integration path is within the region of convergence of formula_8. However rather than use this complicated integral, most functions of interest are translated using tables of Laplace transform pairs, and the Cauchy residue theorem. Analysing the complex roots of an "s"-plane equation and plotting them on an Argand diagram can reveal