Tricks and treats: Nonlinear operations in digital simulation

This report describes powerful shortcuts for programming common nonlinear functions, transfer characteristics, and signal generators useful for digital dynamic-system simulation, and also for digital instrumentation and control These computer routines are digital equivalents of analog diode and switching circuits. Recursion relations (difference equations) are often useful. Complete personal- computer programs demonstrate. limiters, hysteresis, backlash, function switches, and track/hold circuits, with practical applications to blood-circulation and control-rocket simulation, automatic display scaling, and computation of multi-run simulation envelopes.